Outlook.com

Message could not be sent with smtp-mail.outlook.com, server response 552 Invalid domain name in HELO command

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Older post from October 4, 2016. Details may be out of date.

Question asked on Oct 4, 2016
Split from this thread.

Hi Guys,

I have this same problem, but mails are only a few kb's in size.

I'm on Hotmail and mailing to gmail (at the moment).

Since the WLM changes, yesterday I changed the account settings to IMAP.

So, none of the above solutions work for me.

Any idea what I need to do ??

Cheers

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