This just started yesterday. Though I continue to receive lots of email messages, I am now unable to send them. When I try to send an email, I get the following error message:
An unknown error has occurred.
Server Error: 554
Server Response: 554 5.6.1 Messages of type message/partial are not supported
Server: 'smtp.live.com'
Windows Live Mail Error ID: 0x800CCC6F
Protocol: SMTP
Port: 587
Secure(SSL): Yes
I omitted the subject line from this error message, because the message is of a personal nature.
My computer still runs on Windows 7, and I am using Windows Live Mail 2012. Also, I have checked, and the Mail Shield in my Avast antivirus protection program is not only turned off, but uninstalled. So that shouldn’t be a problem.
When I made my first attempt at sending a message, I had included a few attachments. Thinking that perhaps I might be trying to send too many attachments with too much data, I decided to try sending four emails, with just one attachment included with each. But this didn’t help.
Is there anything else that I should be checking, or anything else that I need to change or do differently to be able to send emails again?
Thanks in advance for your help.
Edit: I just tried to send an email with no attachments, and I got the exact same error messages. So apparently the attachments weren't the cause of the problem.
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