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Sent test e-mail message: The server responded: 421 resomta-ch2-16v.sys.c

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Sent test e-mail message: The server responded: 421 resomta-ch2-16v.sys.c

For the last 30-45 days I have had intermittent e-mail issues with connecting a 3rd party email client (eM) to Comcast mail.  Mostly the failures were SMTP-related, and I was able to reset things - mostly by rebooting the gateway, etc.  However, the issues have increased to the point that I cannot even do a simple creation of an account without errors.  Thought maybe it was the client app, but in using MS Outlook 2013, I am not even able to successfully create and test one new account.  It says it successfully completed logon to the IMAP server, but then gives the error message in the Subject line... which I think is being truncated somehow before it spits it all out.  I have checked and re-checked the various settings, including a Comcast-provided cheat sheet for Outlook 2013, all to no avail.  I know that 993 / SSL and 587 / TLS are acceptable ports / encryption settings, so I don't know what else to check.  One time I also received an "Alert" from the server - IMAP 1002 - and that was all it said.  No hex error to track down at MS site... 

 

ANY and ALL help greatly appreciated - thanks!

-rockn24x7

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Re: Sent test e-mail message: The server responded: 421 resomta-ch2-16v.sys.c


@rockn24x7 wrote:

For the last 30-45 days I have had intermittent e-mail issues with connecting a 3rd party email client (eM) to Comcast mail.  Mostly the failures were SMTP-related, and I was able to reset things - mostly by rebooting the gateway, etc.  However, the issues have increased to the point that I cannot even do a simple creation of an account without errors. Thought maybe it was the client app, but in using MS Outlook 2013, I am not even able to successfully create and test one new account. 

 

Are you creating that account under My Account first?

 

It says it successfully completed logon to the IMAP server, but then gives the error message in the Subject line... which I think is being truncated somehow before it spits it all out.  I have checked and re-checked the various settings, including a Comcast-provided cheat sheet for Outlook 2013, all to no avail.  I know that 993 / SSL and 587 / TLS are acceptable ports / encryption settings, so I don't know what else to check. 

 

Check your settings here.

 

One time I also received an "Alert" from the server - IMAP 1002 - and that was all it said.  No hex error to track down at MS site... 

 

ANY and ALL help greatly appreciated - thanks!

-rockn24x7


 


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Re: Sent test e-mail message: The server responded: 421 resomta-ch2-16v.sys.c

@Again ,

 

I had a email client that I was using (eM) to connect into comcast.net and read/send emails successfully until about a month ago.  It then became VERY flaky on the SMTP side in that it couldn't connect to the SMTP server.  Usually the problem went away, and I kind of assumed it was a blip on the Comcast end... but today when it did it again, it did not come back.  Therefore, I decided to try to set up that same account using MS Outlook 2013, and it failed during the NEW ACCOUNT setup, exactly as the Comcast-provided cheat sheet said to do it, using manual installation of the information, and it failed when trying to log into the Comcast account.  I made sure I had the correct password by using it to log into the Comcast website, and I did.  I can try and do a cut-n-paste of the errors if you think that would help.

 

Yes, that link is the "cheat sheet" that I referred to in my opening post.  I tried using both the main ports (993 / 587) and the alternates (143 / 465) with the appropriate encryption selections... and got only failures.  

 

- rockn24x7