Connectivity
Connectivity and managing Your Comcast Business network
Male IT Specialist Holds Laptop and Discusses Work with Female Server Technician. They're Standing in Data Center, Rack Server Cabinet is Open.
Contributor

ESMTP server not available

There is no way to contact the Comcast postmaster except to get removal from an IP blacklist which is not what I'm trying to do.

 

I am a Comcast business customer but I use my own MTA on colocated servers.  I have had trouble getting email to a specific comcast residential customer so I sent a test email and got this:

 

Right now these two servers are giving a temporary failure.

 

Dec 5 11:34:14 mta4 postfix/smtp[47602]: D933310609:
host mx2.comcast.net[2001:558:fe21:2a::6] refused to talk to me:
554 resimta-ch2-19v.sys.comcast.net resimta-ch2-19v.sys.comcast.net
ESMTP server not available

 

Dec 5 11:34:14 mta4 postfix/smtp[47602]: D933310609:
host mx1.comcast.net[2001:558:fe16:1b::15] refused to talk to me:
554 resimta-po-18v.sys.comcast.net resimta-po-18v.sys.comcast.net
ESMTP server not available

 

The email did get accepted.

 

Dec 5 11:34:18 mta4 postfix/smtp[47602]: D933310609:
to=<whastjr@comcast.net>,
relay=mx1.comcast.net[96.114.157.80]:25, delay=5.4,
delays=1.9/0.02/1.6/1.9, dsn=2.0.0,
status=sent (250 2.0.0 laVik9Zj50458laVkkS3yH mail accepted for delivery)

 

This is about the "ESMTP server not available" message.  Comcast seems to have a problem with these two servers and no way to contact Comcast to report this type of problem.

 

I got no bounce message.  The recipient got no email.  That is a separate issue and may be related to spam filters.  What I've read online is there is no way for the recipient to white list someone.  I'll put in a separate note on the forum on that but if anyone can help on this thread that would be appreciated.

0 Kudos
Reply
6 REPLIES 6
Community Manager
Community Manager

Re: ESMTP server not available

Hi @curtisv,

I'm sorry you're having issues when attempting to send emails to that residential account, and we do understand how much of an inconvenience this can be. My team will help address both issues. Is the recipient able to send you messages? Are you receiving those? Is this the only residential customer you aren't able to send messages to? 

0 Kudos
Reply
Official Employee

Re: ESMTP server not available

Hi @curtisv,

 

I'm sorry you're having issues when attempting to send emails to that residential account, and we do understand how much of an inconvenience this can be. My team will help address both issues. Is the recipient able to send you messages? Are you receiving those? Is this the only residential customer you aren't able to send messages to? If you send a private message that includes your name exactly as it appears on your account, your full-service address, and your account number (or phone number) we assist you in detail.

0 Kudos
Reply
Contributor

Re: ESMTP server not available

They can send email to me but cannot receive even if the message from me is a reply.  There are others in comcast I send email to but haven't noticed errors to others but haven't checked with them with a followup text.

 

0 Kudos
Reply
Contributor

Re: ESMTP server not available

Last private message correspondence was "openning a ticket" but I haven't heard anything since then.  Issue is still not resolved.

0 Kudos
Reply
Contributor

Re: ESMTP server not available

Twelve days and still no useful response from Comcast.  Comcast_Che did say he'd open a ticket a week ago and then silence.

0 Kudos
Reply
Contributor

Re: ESMTP server not available

A month later and still no resolution and it doesn't appear that anyone at Comcast is looking into this or has ever looked into this in any detail.

0 Kudos
Reply