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Port 2525 Blocked by Comcast or Modem

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Re: Port 2525 Blocked by Comcast or Modem

No, we have commercial no limit accounts with Brinkster.  I would like try a new modem and post the results.

Bronze Problem Solver

Re: Port 2525 Blocked by Comcast or Modem


thadeej wrote:

This is office wide by the way; all three computers and all email accounts (over 10) send email with no errors but they do not reach their destination.  Again, switching the router over to dsl for a few days solves the problem, but not before we realize a half day's worth of emails now have to be re-sent.


Well, like I said, it's not about Comcast blocking ports. Are you using a third party email service, and maybe there are rate/data limits on the sending IP address or account?

Frequent Visitor

Re: Port 2525 Blocked by Comcast or Modem

This is office wide by the way; all three computers and all email accounts (over 10) send email with no errors but they do not reach their destination.  Again, switching the router over to dsl for a few days solves the problem, but not before we realize a half day's worth of emails now have to be re-sent.

Frequent Visitor

Re: Port 2525 Blocked by Comcast or Modem

Correct, no connectivity issues or error messages in Outlook.  The receipient(s) simply never recieve the email. 

Bronze Problem Solver

Re: Port 2525 Blocked by Comcast or Modem


thadeej wrote:

After a few weeks of service our emails just stop going thru (all pop3 accounts - custom smtp servers (not using comcast email or comcast smtp).  In outlook, they appear to be sent (no error messages or anything like that, but they never reach their recipient)


So the setup is that Outlook connects to a remote SMTP server on port 2525? If so, the problem isn't about a blocked port; Outlook would generate an error message complaining about not being able to connect to the server in that case. So, the messages are being accepted by the remote server, but then something is going wrong at that end, either with the server itself, or between the server and the recipients. Or... are the messages in the Outlook Outbox?

Frequent Visitor

Re: Port 2525 Blocked by Comcast or Modem

Great message board you've got here Comcast.  Nice to see that your monitoring your customer's concerns... btw it happened again today and this time a simple reset of the modem did not help.  Would you like to explain to your customers why you are blocking SMTP port 2525?

 

Frequent Visitor

Port 2525 Blocked by Comcast or Modem

After a few weeks of service our emails just stop going thru (all pop3 accounts - custom smtp servers (not using comcast email or comcast smtp).  In outlook, they appear to be sent (no error messages or anything like that, but they never reach their recipient) I have to switch over to DSL for a day and replug the cable modem the next day.  Then we are fine for a few weeks until we discover it's happened again and nobody is getting our emails. 

 

We don't send spam or heavy email loads.  We do send quite a bit of large attachment (4 to 10 M throughout the day.  Total daily emails in the 300 in / 300 out range and less than 200 MB daily.

 

Is it time for a new modem or is comcast blocking us?