Emails with attachments don't arrive in hotmail.com account.

During the past few weeks I've experienced twice that emails I've sent to users on hotmail.com don't arrive. Done some testing and found that if my sent message has no attachment, it arrives fine. If there is an attachment (pdf-file of 19kB) it doesn't arrive in the user's mailbox or in the junk mail folder.

The log from my mail server shows that sending went fine, and the message was transferred ok to hotmail's server. Message and attachment is virus checked before sending.

Anyone know what may be the reason for this?
Olaf BerliAsked:
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JohnBusiness Consultant (Owner)Commented:
You need to get the problem users to check their Outlook.com settings (Hotmail has gone) for attachment properties. The issue is not yours. Perhaps add you to the Safe Senders list. Outlook.com does not preclude normal attachments,
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Olaf BerliAuthor Commented:
OK.
Thanks.
The addresses involved are actually one hotmail.com and one live.no. Both of these resolves, according to my mail server logs, to hotmail.com addresses.

Will have these users check their settings...
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JohnBusiness Consultant (Owner)Commented:
Hotmail has moved to Outlook.com so even with a Hotmail address, it now goes to Outlook.com. Please let us know after settings have been checked.
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Olaf BerliAuthor Commented:
Verified with one of the users.  Seems ok. Thanks!
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JohnBusiness Consultant (Owner)Commented:
@omberli  - You are very welcome and I was happy to help.
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