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email wont send

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Re: email wont send

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New Poster

Re: email wont send

I can receive emails I just can't send them I was fine this morning and in afternoon I used computer I was unable to send kept coming up with errors where do you find the place to change the port on windows or on Comcast?
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Frequent Visitor

Re: email wont send

I just got the same problem. No notification that I could find from Comcast that they blocked port 25. Just a general message in their help file that "if you have problems connecting" you should change to another port.
 
Seems funny that all these people's computers got "misconfigured" at once. Comcast started blocking port 25 or else they wouldn't have put the help file on their system. They knew people were having problems and how to get around it.
 
How about a general notification  that they are about to change something. Gee, maybe even a video on The Fan, which pops up everytime you log into Comcast.
 
Oh, I forgot, there isn't anybody paying for a message to go up on The Fan. But, aren't we all good paying customers?
 
Frequent Visitor

Re: email wont send

Bartleby, I just wanted to say Thanks - I just got to work this morning, followed the instructions in the article you linked, and everything is working fine now. Again, many thanks for your help.
 
Derek
Regular Visitor

Re: email wont send

Same here, totally blocked and nothing I can do to get off authentication.  It is good for Comcast and it will be the way of the future.  Some unsavory people try to take advantage and this is what happens to the few innocent people.  Basically states, if you don't have an account on comcasts servers, you can not send out or receive mail.  Done deal! 

However my application is a little different and sometimes I need to research certain things for work from home and I might run a server for a limited time and thus break the terms of service.  Which is my fault, and now I am shut down and they have contained me.  I can't guarantee how much longer I will be sticking around - never thought about it before - but we will see if I can survive...  I tested my devices for virus', open relay and check my logs regularly - nothing of the sort.  I just got caught - ouch!  But what actually draws the line and defines "servers" - I have voip thru vonage at home, is that a server too?  Someone might consider that a server.  I remote into my computers from home all the time and transfer files, sometimes stream music etc - will ports 5631, 5800, 5900 & 80 inbound get blocked next?  I am still paying the same price for less.  This by any means is not to be taken against comcast in any way - they have to do what they have to do!  It is just a little aggrevating that the few email I send and received warranted this shutdown - that's all.  I use more bandwidth on my xbox in a day than emails for the enitre month...

Frequent Visitor

Re: email wont send

Alot of these postings could have been avoided had we received our email from Comcast. Mailwasher tried to delete mine. It is coming in as raw html so it makes it tough. I was able to retrieve, but outlook also tried to can it for spam and had to retrieve it again.
I was able to copy it into an html editor and make it readable in there. There is lots of useful easy to understand info, if it can be read.  To start, it tells you how you are spamming, but it also tells you about the one-click fixes and a link to manually do it.  One of the links goes to the comcast branded software that needs to be installed. My Vista machine refused it.  So maybe the Abuse Team could redo this notification mail to cut down on forum posts, email and phone calls. I can deal with the outcome, now that it is clear to me.

For those that still have their unreadable email, open up notepad and copy the whole thing and save as an htm file instead of text. Or if you have an html editor, copy and preview.
Bronze Problem Solver

Re: email wont send

At work you are connecting via AT&T, as you said.  So the Comcast mail servers will require you to confirm your identity.  Your client already signs in on the POP3 side to download mail...but the SMTP server will want to verify your ID as well, since you aren't getting to it from the Comcast network.
 
See this link, which applies to Outlook Express.  But the same deal applies if you use Outlook.  And the travel settings will work even when you are at home, so once you set things up that way, you don't need to change based on whether you are home or away.
Frequent Visitor

Re: email wont send

Could you explain that last bit a little more please? What exactly do you mean by "as if you were travelling outside the comcast network"?
 
Thanks
Bronze Problem Solver

Re: email wont send

As long as the router isn't blocking the traffic, then you should be able to access the Comcast SMTP server if you've properly configured your client as though you are travelling outside the Comcast network.

Message Edited by Bartleby on 04-14-200702:53 PM

Frequent Visitor

Re: email wont send

I connect to a router, then a modem. It's a small office, and I actually installed the network myself, so as far as I know there are no intentionally-blocked ports.
Bronze Problem Solver

Re: email wont send

How do you connect your system, when you are at work?  Do you connect to AT&T DSL directly, via a modem (or router/modem combo)?  Or do you just plug in to a network at work?
 
It's likely that security measures at your workplace may be preventing use of the alternate ports.
Frequent Visitor

Re: email wont send

Michael,
 
Any thoughts regarding the problem I detailed above? I know it's not a port being blocked by Comcast, because everything works fine when I am working at home.
 
Thanks
 
Derek
Most Valued Poster

Re: email wont send

makamaui,

Your Port 25 has been blocked.
New Poster

Re: email wont send

Michael - please check to see if I have a block on Port 25...thanks
 
Frequent Visitor

Re: email wont send

Well, it looks like they are done for the day at the phone number posted in the beginning of this thread. I was able to change the port and get it working for now, I seriously doubt it was the machine infected. I reformatted it a couple weeks ago, the harddrive was on it's last legs, it finally gave out last night. I'm betting on the router with the wireless connection being accidentally left open. I live in an area where people just don't understand security, virus, spyware or their wireless connections. They probably didn't even know they were on someone elses line.
Frequent Visitor

Re: email wont send

I am having similar problems, but none of the suggested fixes seem to work. I can send messages using Port 25 when I am at home, but when I am at work, no Port, with or without authentication and SSL seem to work. I have tried 465 and 587. At work, we are connected via AT&T DSL, if that has any bearing on the subject. I can connect to my corporate email (which uses port 2525) with no problem. The error I get is : 'Outlook could not connect to the outgoing mail server (SMTP). The problem could be the server name or port, or your server may not support SSL. Verify your port and SSL settings in More Settings under the Advanced tab.'
Any help would be appreciated.
Bronze Problem Solver

Re: email wont send

If Comcast notified you of a port 25 block, you definitely want to rule out the possibility of an infected system.  Start here (link to the "READ THIS FIRST" sticky in the Security section), for any system you suspect.
 
In the meantime, you should be able to get your client working again by either of these methods.  Switch to using 587 on the outbound side and turn on authentication...or switch to 465 with authentication AND SSL turned on.

Message Edited by Bartleby on 04-13-200707:29 AM

Frequent Visitor

Re: email wont send

Just discovered the same problem this morning. I received an email from Comcast saying to the affect, there may be a virus, and they have taken steps to fix the problem. It was hard to read as the html wouldn't render. My spamchecker tried to delete this. I know my PC is clean. There is one of 2 possibilities,if indeed there was spam going out. My daughters computer which crashed last night and won't restart, so I can't check it til tonight (possible hardware failure) OR my mistake of leaving the wireless connection open when my son wanted to try his wii system on the internet. Somebody could have hopped on. Who do I have to contact to get this remedied. I have a work email and a website email that are now useless for sending.
Bronze Problem Solver

Re: email wont send



JoeRed wrote:
Everyone,
 
I experienced the same problem. No changes and one day the wife's laptop and my pc would not send mail using Outlook 2003.
This comment is not directed specifically at Joe, but rather at everyone who states that they did not make any changes and something happened.  Many (hopefully all) people have antivirus, antispam, antiadware, antispam and other security programs installed and set to update automatically.  Those automatic updates can often be the source of changes that are made unbeknownst (Ok, so I read too much Jane Austen) to the users. So while you may not have made any changes yourself, this does not mean something didn't change in your settings or registry.  Just a heads up.
 
mady
New Poster

Re: email wont send

Everyone,
 
I experienced the same problem. No changes and one day the wife's laptop and my pc would not send mail using Outlook 2003. I went to the thread that Micheal has attached and sure enough it worked perfectly. Thanks everyone for the help.
 
Joe
Most Valued Poster

Re: email wont send

Ridleyjim,
 
I checked your account and we have not blocked Port 25.  Something else is going on with your connection.  You may want to try and use the settings in this thread to see if that makes a difference.
Silver Problem Solver

Re: email wont send

See the third post from the top of this thread by EarlyOut?  Very explicit directions.  Where he says 465, 587 will also work.

As for your hosting company, you'll have to ask them.  If they will only allow SMTP over port 25, then you're alternative is to just send your outgoing mail via Comcast's smtp.comcast.net on port 465 or 587.  As long as you authenticate using your Comcast id, it will work just fine.

Message Edited by Baric on 04-10-2007 09:13 PM

New Poster

Re: email wont send

Hello Michael,
 
The same thing happened to me about a month ago and I have been racking my brians on why my emails have not been going through to my mail server with my hosting account.  I have been using port 25 as well.
 
Apparently, by readint his post I will need to use port 587.  So does this mean that I will need to ask my hosting company to allow port 587 or is it automatically open?  Also, I'm not sure what authentication means?  Is this SSL?
 
Any help would be appreciated!
 
Jim
Regular Visitor

Re: email wont send

Thank You Michael I needed you Monday
I am not good a saying what happen. I don't think I was sending spam.I know nothing about ports really I don't know much except I love sending emails.
Guess I better learn fast to keep up!!!
Most Valued Poster

Re: email wont send

abbieray,
 
Thank you for posting an update.  I am glad to hear that you got things working again.  To confirm, I checked your account and we did in fact block Port 25.  You should be able to use any SMTP service available to you (including smtp.comcast.net), as long as, you connect on an alternate Port (465 or 587).
Regular Visitor

Re: email wont send

I called my ISP(Penn State) this morning and now I can send and receive email. For some reason Comcast did block it some how but now my Eudora does work and Comcast is not the ISP.
They said they took me in the back door. I did have to change the port and a few other settings but when I set up my Eudora account it was with Penn State and never with Comcast then on Monday Comcast blocked it and I had to go through them. I guess I am not very good at telling you all what happen but it is up and going again....thanks everyone for you help.
Silver Problem Solver

Re: email wont send

Smiley Happy
 
Let's reserve judgement on the "it's not my firewall or virus scanner" thing, too many times it's exactly that even when you didn't change anything (these guys love to auto-update in the background and not tell you).
 
To get the bottom of this problem, I say let's to straight to the horse's mouth and see the actual conversation that's going on between OE and smtp.comcast.net.  If you go into OE, and select Tools -> Options -> Maintenance tab. down near the botton of the dialog is a section called Troubleshooting.  Checking any of these protocols will generate a logfile containing the actual commands that go back and forth between OE and Comcast.  If you check Mail and then hit OK, try and send a message.  When it fails, use the Search function on the Start menu to find the file called "smtp.log".  I'm tempted to say just post it, but it can contain personal information you might not want seen by the world at large.  So you have a couple of options here:
 
1. Just post it anyway, so what if folks find your email address?  Personally I think of my email address as public information, it's no good if others don't know it.  Comcast's spam system works very well for me so junk is kept to a very low level.
2. Santize the file in Notepad (or your editor of choice), removing anything you don't want seen and then post it.  Be careful if you do this so you don't remove an important bit of information about the problem.
3. Send it directly to me.  I can be reached at baric@comcast.net  and others here can tell you I'm a nice guy (really, stop laughing!)  I promise not to disclose anything I see there Smiley Wink
4. Try to figure out the problem yourself.
5. Have a friend you trust look at the file.
 
One other thing to check and it's a long shot, but there have been instances of malware updating your system's HOSTS file and putting in a spoof for your mail server so all your mail goes to this other system.  Look for an "smtp.comcast.net" entry in your HOST file, which is usually found at: c:\windows\system32\drivers\etc\hosts.  This is just a plain text file, it will load fine in Notepad or whatever.  If you find such an entry remove it and restart OE and try again.  And then we have the whole issue of findng out what added it, which is something best discussed in the Security forum.
Frequent Visitor

Re: email wont send

No go... my firewall is off, port 587 is open, and no e-mail scanning is going on.  Like I said before, this is so strange as no configuration changes have been made to my PC; the ability to send just stopped.  I have been in tuoch with the Comcast help desk, and they've recommended I try their live chat - but I can't connect to that website.  I'm about ready to toss the PC in the trash.  Sigh.
Silver Problem Solver

Re: email wont send

What about your firewall or virus scanner?  Make sure they are configured to do NO email scanning.  Better yet, turn them off temporarily as a test.
Frequent Visitor

Re: email wont send

Well, I tried again - set SSL for both send and receive and even went so far as rebooting my PC...  unfortunately, nothing has helped.  I can still receive but cannot send.  This is the most recent error message:
 
The connection to the server has failed. Account: 'mail.comcast.net', Server: 'smtp.comcast.net', Protocol: SMTP, Port: 587, Secure(SSL): Yes, Socket Error: 10060, Error Number: 0x800CCC0E
Silver Problem Solver

Re: email wont send

I'd make these changes:

1. Turn on SSL for both incoming and outgoing servers
2. Change the incoming (POP3) port to 995 (this should happen automatically when you select SSL on this server).

See if that helps.
Frequent Visitor

Re: email wont send

Sure thing - be prepared as I overwhelm you with information...  First, I feel I must preface this with the information that the problems occur using both Outlook Express and Outlook 2002.  I have tried contacting the help desk, but that has been a lot of non-help.  So, here are my settings for both applications:
 
From the Servers tab of the account properties:
 
Incoming server is POP3
Incoming mail (POP3):  mail.comcast.net
Outgoing mail (SMTP): smtp.comcast.net
My server requires authentication and it is set to use the same setting as my incoming server.
 
From the Advanced tab of the account properties:
 
Outgoing mail (SMTP): 587
Not selected:  This server requires a secure connection (SSL)
Incoming Mail (POP3):  110
Not selected:  This server requires a secure connection (SSL)
 
Let me know if you need to know about any other settings.
 
The last time I tried to send - using Outlook Express - I received the following message:
 
"The connection to the server has failed. Account: 'mail.comcast.net', Server: 'smtp.comcast.net', Protocol: SMTP, Port: 587, Secure(SSL): No, Socket Error: 10060, Error Number: 0x800CCC0E"
 
In looking through my messages, the last successful send was at 8:45am on 4/4 - after that nothing has been sent.
 
Again, I appreciate you looking into this... I'm about ready to scream this is so frustrating!
Silver Problem Solver

Re: email wont send



kmblush wrote:

I have changed my setting to use Port 587 for outbound and that isn't working either. 

Hmmm, that would suggest your problem is something other than a port block as long as you also turned on authentication.  Can you give us a rundown of exact settings you're using and the exact error message you get when you try to send?
Frequent Visitor

Re: email wont send

Michael,
 
I would appreciate knowing if I have a Port 25 block.  On the other hand, I have changed my setting to use Port 587 for outbound and that isn't working either.
 
Kathy
Most Valued Poster

Re: email wont send

All,
 
I would just like to jump in here and add some clarification - Comcast does block Port 25 on an account by account basis.  This is done when a particular account has been identified as sending Spam.  As Baric points out, this is almost always the result of an infected computer and the customer almost always has no idea that this is even happening.  Once a Port 25 block has been placed on the account, it is usually never removed.  If you have specific circumstances that require the use of this port, please contact us and we will evaluate the request.  The preferred alternative is to use Port 587 with authentication.
 
And while I realize that some of you would like to see a blanket Port 25 block put in place, this is not something we are looking at doing at this time.  This is certainly something that we will continue to evaluate.
 
As time permits, I will see if I can verify for some of the posters in this thread if they have in fact received the Port 25 block.
Frequent Visitor

Re: email wont send

There's nothing in the Screened Mail folder... Yup - I sure do love it when everything comes to a screeching halt without warning.   I do appreciate your advise, and I'm going to double check my settings now to make everything that should be enabled is enabled.  Again, thanks for your help (and moral support).
Silver Problem Solver

Re: email wont send

Yeah, when things stop working and you didn't change anything, it gets under your skin real fast.  As a workaround (consider doing this permanently), use 587, SSL on, Authentication on.  But do check your daughter's computer.  Also check your Screened Mail folder on Comcast Webmail, they may be detecting their own messages as spam Smiley Happy.
Frequent Visitor

Re: email wont send

Well, I have the primary account and I know I haven't received anything from Comcast.  Like I said, this just came out of the blue - I was logged on all day yesterday working from home, and was able to send/received up until about 1:00 or so Mountain time.  After that, I could only receive.  I'm not sure what is going on, but it is so frustrating...
Silver Problem Solver

Re: email wont send



kmblush wrote:
Baric - this is just so strange since it started out of nowhere...  I'll check my cable modem and see if there's anything going on there (and if my kid's been spamming I'll kill her...)  Thanks.


I doubt you'll be able to see anything when you go look at your cable modem's settings at http://192.168.100.1, but it's worth a try.  Most cable modems will only give you basic information on connection stats, error logs, etc.  They don't usually give you details on the contents of the bootfile (other than it's name) that gets downloaded into your modem by Comcast.  But the name might be a clue.  Others here have confirmed they got a message from Comcast if they instituted a port block.  Check your email client's trash and spam folders, alot of folks mark messages from Comcast as Junk (since so many of them are), and this might have gone where the rest went.  This message would probably have been sent to the Primary account, so if you don't routinely use that account, give it a look.

And I would definitely check your daughter's computer.  If it is spamming, chances are she doesn't even know it, most spam cannons are the result of a hijacking by some piece of malware the user ran thinking it was something else.
Regular Visitor

Re: email wont send

Incidentally, I highly recommend AVG and Spybot, which are free.  With Spybot, it is critical to use Teatimer.  This prevents any registry changes that you are not initiating.  If my friends computer had that installed, it would not have been all garfed up like it was.

Folks, check any kids computer on your network.  Who knows where they surf and when they click "Yes".....

Thanks again.


Silver Problem Solver

Re: email wont send



AJMaske wrote:
 
Okay... I have to apologize and edit this post, ComCast did send a notification message... my firewall software recognized it as SPAM and placed it into the SPAM folder.   I don't get many of them so I rarely check the folder... I just find it a little ironic how ComCast states that spam is being sent from one my computers in the house and the email they notify me with is in itself identified as SPAM... 

Message Edited by AJMaske on 04-06-200709:56 AM




Ah, that starts to make sense.  Do they cite as an example what's being sent as spam?  I'm sure what ever they are using to detect spamming is not prefect, you might have been detected in error if you're SURE no-one on your network is spamming (even unknowingly as an infection).  Depending on what kind of router your have and whether it's keeping a log, you might be able to see who's doing the majority of traffic on port 25 and you can take a closer look at that system.  If your were detected incorrectly, your best bet is to convince Comcast of this through that open supervisor ticket.
Regular Visitor

Re: email wont send

I am convinced that this was the problem.  I found an email that Comcast sent me in my spam bucket with raw HTML, so it is hard to read, but it looks like they detected spamming right about the time I was working on that infected computer.  I had to get it online to download virus defs and spyware tools and I am sure it was doing it's spamming then.  Ok, looks like I've discovered the issue.  I guess I can leave it as port 587.  No big deal I guess, as long as it works.  Thanks, Baric.


Frequent Visitor

Re: email wont send

Baric - this is just so strange since it started out of nowhere...  I'll check my cable modem and see if there's anything going on there (and if my kid's been spamming I'll kill her...)  Thanks.
 
Silver Problem Solver

Re: email wont send

Yep, sounds like a Port 25 block.    If you're not doing any spamming, check your system for infection as a spam cannon, or another computer on your local network (kid's machine, SO's, etc).  This type of block is usually configured in your cable modem so it targets and effects all computers behind your cable modem.
Frequent Visitor

Re: email wont send

I just want to say that yesterday the same problem started occurring on my e-mail account when trying to send.  I have tried sending from both Outlook 2002 and Outlook Express 6.  In fact, the trouble began around 1:30 pm Mountain time - prior to that I could send without problems.  I have tried using port 587 and 25, and neither works.  The most recent error I received (Outlook Express) is:
 
"The connection to the server has failed. Account: 'mail.comcast.net', Server: 'smtp.comcast.net', Protocol: SMTP, Port: 25, Secure(SSL), No: Socket Error: 10060, Error Number: 0x800CCC0E"
 
Any help would be greatly appreciated.  It is a pain to have to utilize the webmail feature and cut/paste my outgoing messages.
 
Thanks,
 
Kathy
Silver Problem Solver

Re: email wont send

This sounds like a port block and it was probably caused when you had your friends infected computer hooked up to your network.  The spam doesn't have to be directed at Comcast's SMTP server to be detected.

In a previous message I told another user this type of port block is was possbile but unlikely, but on further reflection it makes much more sense.  Why block 465 or 587 when there's no spam being sent on those ports?

Go talk to Comcast and tell them you've taken care of the problem and to unblock port 25 for you.  Better yet, continue to use port  587, it's the up and coming port for email submission.
Frequent Visitor

Re: email wont send

I just got of the phone with ComCast Tech Support (1st level)... Apparently they are blocking port 25 on specific accounts due to increase volume of spam...  I couldn't question the person I spoke to cause their not technically savy enough to answer at that level.  I know for one that no one within my house hold is "sending" spam, now we may be "receiving" quite a bit of it but that would be port 110 - which still works.  I have an open ticket for the next level supervisor to contact me which hopefully will be within 24-48 hours....
 
And no.  There was no notification sent to the affected customer's.
 
Okay... I have to apologize and edit this post, ComCast did send a notification message... my firewall software recognized it as SPAM and placed it into the SPAM folder.   I don't get many of them so I rarely check the folder... I just find it a little ironic how ComCast states that spam is being sent from one my computers in the house and the email they notify me with is in itself identified as SPAM... 

Message Edited by AJMaske on 04-06-200709:56 AM

New Poster

Re: email wont send

Comcast starting blocking port 25 in and out a few days ago. I wish someone from Comcast would tell us what is going on.
Frequent Visitor

Re: email wont send

I'm using Outlook 2003, the application reports it can see the server but cannot connect... sounds like a port issue to me...  I can ping the server and get a healthy response.
 
 
Regular Visitor

Re: email wont send

Baric, I use T-bird and nothing has changed on my end.  Not any of my hardware or software.  Looked at the settings and nothing seems out of place.  Worked fine a few days ago.  Tried telnetting (to four of the SMTP servers) as another has mentioned and nothing.  Time out.

The only thing I can think of is that I had been working on a friends (infected) computer which looks like it had a spam relay installed on it.  I had it fixed pretty quickly, but it's possible that it was on the (perimeter) wire long enough to try spamming, but it would not have used Comcast's SMTP server (as it is a dialup box by default).

I realize that you have been able to set it up, but it seems odd that others are experiencing this same issue.