Email Recipient not receiving email

I have a recipient (different domain) that is not receiving my emails - only to this domain. Not receiving any bounceback messages, errors, etc. They can email me just fine.

Their IT person says they aren't using any filterning/blacklists/etc.

They have tried checking their email through their web client to bypass outlook in case that was a problem.

Any suggestions??

Please help!!

Responses

VBSSP-RICH

Advocate

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1.4K Messages

11 years ago

Hello demarcopro and welcome,

This sounds like the proverbial case of emails sneaking their un-noticed way into either spam or junk mail. Evidently, if you are not getting any recipient server in or your out-going server error messages, this would seem that you emails are respectively processing correctly.

You might want to check the actual incoming and outgoing server ports on both sides to make sure that the recipient these stanards are in place:

The POP3 port for inbound emails is 110 (995 if you want to use secured POP3)
And the IMAP port for inbound emails is 143 (993 if you want to use secured IMAP)
The SMTP port for outbound emails is 25 or 2525 (465 if you want to use secured SMTP)

Now, Comcast email outgoing servers typically may block port 25 due to avoid the most recent port 25 email hacker frenzy.

Hope this helps you out and let us know what the final solution was to this.

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Benny

New Member

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1 Message

11 years ago

I am having this problem as well. Most of my email is going where intended. There are a couple of domains that never receive my email and I do not get a bounce-back notice.

One of the domains is my own so I can personally go to the client for that domain and check the Spam/Junk settings and folders. It is not in those folders.

I am using Pop3/SMTP ports (Ports 995/587 respectively) on my desktop.

As an additional note, if I send a test message from the web client, it goes through fine.

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Comcast_Jon

Administrator

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1.5K Messages

11 years ago

Hello Benny,

Welcome to the forum.

Based on your post this is a possible filtering issue on those servers.

I would recommend the following troubleshooting method.

- Create an email using your email client without any content (signature, header, etc.) send to a domain that is not receiving your email.

- If you can receive the test email.

- Review the mail "content" your normal messages have and try to send it again to further troubleshoot.

- If you cannot receive the test email.

- Try a different email profile (if you are using Outlook) or another computer with your email setting and send the test message again.

Please try this method to troubleshoot.

Thank you

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