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E-mails sent to hotmail.com, mail.com and gmail.com domains are sometimes being blocked.

SOLVED
4Crawler
Contributor

E-mails sent to hotmail.com, mail.com and gmail.com domains are sometimes being blocked.

Hotmail.com:

Reporting-MTA: dns; comomta-ch2-03v.sys.comcast.net [69.252.207.29]
Received-From-MTA: dns; [xxx] [xxx]
Arrival-Date: Fri, 07 Jul 2017 03:23:03 +0000
Final-recipient: rfc822; abc@hotmail.com
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp;  550 OU-001 (SNT004-MC4F29) Unfortunately, messages from 69.252.207.29 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.

 

 

Mail.com:

Reporting-MTA: dns; comomta-ch2-01v.sys.comcast.net [69.252.207.121]
Received-From-MTA: dns; [xxx] [xxx]
Arrival-Date: Thu, 08 Jun 2017 00:11:45 +0000
Final-recipient: rfc822; abc@mail.com
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp;  554 For explanation visit http://postmaster.gmx.com/en/error-messages?ip=69.252.207.121&c=bip
Last-attempt-Date: Thu, 08 Jun 2017 00:11:45 +0000

 

gmail.com:

Reporting-MTA: dns; comomta-ch2-01v.sys.comcast.net [69.252.207.121]
Received-From-MTA: dns; [xxx] xxx]
Arrival-Date: Wed, 05 Jul 2017 00:41:16 +0000
Final-recipient: rfc822; abc@gmail.com
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp;  503 5.5.1 MAIL first. k7si12573274qkb.124 - gsmtp
Last-attempt-Date: Wed, 05 Jul 2017 00:41:16 +0000

 

I use the THunderbird e-mail client and outgoing SMTP is smtp.w14x.comcast.net

Accepted Solution

Re: E-mails sent to hotmail.com, mail.com and gmail.com domains are sometimes being blocked.

Thank You for this update.

 

The server smtp.w14c.comcast.net is a correct address to use but since you were having issues using the smtp.w14a.comcast.net may resolve for you. Please let me know if this does not work for you.

 

Thank You

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4 REPLIES
4Crawler
Contributor

Re: E-mails sent to hotmail.com, mail.com and gmail.com domains are sometimes being blocked.

Was getting the gmail bounce message this afternoon.  I switched the outgoing server to smtp.comcast.net and that seems to have resolved the issue.  Perhaps there is some issue with the outgoing business SMTP server?

Community Manager
Community Manager

Re: E-mails sent to hotmail.com, mail.com and gmail.com domains are sometimes being blocked.

Hello 4Crawler and welcome to forums,

 

I apologize for my delayed response to your post. I am glad that you were able to temporarily route your SMTP with the smtp.comcast.net but the system audit will soon catch on to your routing. I see that you are using smtp.w14x.comcast.net to route your outbound SMTP but I show that you should be using smtp.w14a.comcast.net. (using w14a not w14x) Would you please adjust the server information and report back to us with your results?

 

Thank You

Highlighted
4Crawler
Contributor

Re: E-mails sent to hotmail.com, mail.com and gmail.com domains are sometimes being blocked.

Sorry, I had a typo in my original post, I had been using smtp.w14c.comcast.net, but have now changed to w14a instead.  I was using w14c as that was what was listed on the recommended settings page some time ago.

Community Manager
Community Manager

Re: E-mails sent to hotmail.com, mail.com and gmail.com domains are sometimes being blocked.

Thank You for this update.

 

The server smtp.w14c.comcast.net is a correct address to use but since you were having issues using the smtp.w14a.comcast.net may resolve for you. Please let me know if this does not work for you.

 

Thank You

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