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Email sent from HMailserver to a Hotmail address is not getting to Hotmail.

Posted on 2013-01-21
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Last Modified: 2013-01-31
Hi,

When I try to sent an email from my hmailserver to a hotmail address, in the logs (attached screenshot) I get the following, and the mail does not get to Hotmail -

RECEIVED: 220 COL0-MC2-F35.Col0.hotmail.com Sending unsolicited commercial or bulk email to Microsoft's computer network is prohibited.

The IP address is not on any spam database and the DNS looks to be set up ok. I have disabled ESET Smart Security to test this as well, all with no success.

Mail gets to gmail, yahoo etc.

Many thanks!
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Question by:mbaughan
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Author Comment

by:mbaughan
ID: 38800809
I have just found out from the client that the emails are now being received by Hotmail, but are going in to Junk. How can I stop these going in to Junk??
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Accepted Solution

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Brian B earned 500 total points
ID: 38803104
Something about the content of your message or your server is making Hotmail think it is potential spam. There may be more details in the message headers when they receive it. Does all your mail go to their junk, or just specific mailings?

You said you checked your IP address, but was it against a comprehensive RBL list like network-tools.com? Problem is that hotmail uses their own proprietary list, but at least a big search like that would give you some idea.

Sending your mail through a smarthost might help get around such issues.
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Author Closing Comment

by:mbaughan
ID: 38840254
I ended up sending mail through a smarthost. THanks for your help.
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