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Office365 SMTP does not work
07-04-2016, 11:15 PM (This post was last modified: 07-04-2016 11:32 PM by Rafail.)
Post: #1
Office365 SMTP does not work
I have confirured Office365-hosted IMAP account as specified at https://support.office.com/en-us/article...7113525f6c

IMAP works OK, but SMTP does not. An attempt to send an email results in the immediate

Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity. Account: 'Test', Server: 'smtp.office365.com', Protocol: SMTP, Port: 587, Secure(SSL): Yes, Error Number: 0x800CCC0F

I attached the trace collected in Network Monitor - rename .txt to .cap.
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07-04-2016, 11:34 PM
Post: #2
RE: Office365 SMTP does not work
Hello,
port 587 does not work on oe with newer windows. It has beed discussed many times.
Suggested alternative port is 25 that normally will work.

Rafail B.
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