Email we send not being received.

55 pts.
Tags:
Email
internet email
Outlook
One of our business contacts has trouble receiving email from us at his domain. It appears that no one in his domain (.com domain, not AD) receives email from us (at least not regularly - they may receive mail sometimes, but less than 50%). There are no error messages received in Outlook. Other users sent the same message receive it with his domain's email address in the to: list, so I know it is being sent, it just never gets to him (or his secretary, or his co-workers, etc.). I've checked the email address in the address book and it is correct. I've looked at our MX & PTR records and they appear correct. I've checked our IP against blacklists (using mxtoolbox.com and a couple others) and we aren't on them. Our web hosting provider (all our email goes through them - and their IP is the one I checked for blacklisting) has assured me that if Outlook doesn't report an error, it has gone through, and they can't track it after it has left their servers. This is a very important business associate, so I really need to get reliable email to/from this person's domain. If anyone can offer some suggestions on where to look next, or who to contact, I'd appreciate it. Thanks, Mike.

Answer Wiki

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Are any other recipients having issues receiving your messages? If it is limited to one domain 99.99999% chance it is on that domains side. Either their spam blocker is catching it, their mail server is deleting your messages or individual users outlook junk filters can be doing the dirty work.

Is the domain you are sending to a owned domain name or something along the lines of hotmail or gmail?

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  • Fishmahn
    Karl, thx for the confirmation. I was all ready to say no one else is having this problem, when I find there is another domain that doesn't receive messages from us. However I may have the solution there - their PTR record is missing (dnsstuff.com is a wonderful place...) I checked the first domain and it looks ok. As for your other question, it is an owned domain, hosted by register.com. The other domain is also owned and hosted (integralcorp.com?) Mike.
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  • Schmidtw
    Have you changed firewalls recently? Most modern firewalls have software internally to dictate what goes through and stops, and this includes emails on an exchange.
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  • Fishmahn
    Too bad there's no edit feature... There are now 2 domains that are not receiving our emails. But numerous others receive messages easily regularly. The 2 domains that are not receiving mail are geographically separate (NY and IL - we're in IL as well). I'm pulling what little hair I have left out... Mike.
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  • Fishmahn
    Schmidtw; No change to firewalls - and I'm using our web host's email, not exchange. Each workstation d/ls and sends the messages direct from 'mail.<webserver>.com'. Mike.
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  • Labnuke99
    The first answer is the most likely answer. You will need to contact someone in the recipient's IT support group and describe the problem to them. I have done this in the past and in most cases they are willing to add your sending domain to their whitelist. They likely have some filtering rule blocking messages from your senders. There could be a setting you might be able to make also that they could recommend to make your e-mail more friendly to other systems. For example, there have been issues with some companies receiving TNEF attachments from Microsoft servers. Changing the TNEF attachment settings makes the sending system more recipient friendly and basically no functionality is lost by making a simple change like this.
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  • Robert Stewart
    I would have to agree if your not getting any return to sender notifications from your email server, it is on the other (reciepient) end. Probably a rule or something to forward to junk email, could it be an attachment, alot of email servers have size limits on what can be received.
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  • 6272269
    One of our business contacts has trouble receiving email from us at his domain. It appears that no one in his domain (.com domain, not AD) receives email from us (at least not regularly - they may receive mail sometimes, but less than 50%). There are no error messages received in Outlook. Other users sent the same message receive it with his domain's email address in the to: list, so I know it is being sent, it just never gets to him (or his secretary, or his co-workers, etc.). I've checked the email address in the address book and it is correct. I've looked at our MX & PTR records and they appear correct. I've checked our IP against blacklists (using mxtoolbox.com and a couple others) and we aren't on them. Our web hosting provider (all our email goes through them - and their IP is the one I checked for blacklisting) has assured me that if Outlook doesn't report an error, it has gone through, and they can't track it after it has left their servers. This is a very important business associate, so I really need to get reliable email to/from this person's domain. If anyone can offer some suggestions on where to look next, or who to
    20 pointsBadges:
    report

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