Important Notice: On February 29th, this community will be put into read-only mode. All existing posts will remain but customers will be unable to add new posts or comment on existing. Please feel to join our Community Discord for any questions and discussions.

Cannot Send Email to Exchange Online - Remote Certificate is Invalid

We have recently migrated from Exchange on premise to Exchange online with Microsoft 365.  When updating the SMTP information for Deploy, I am getting the following error:

"The remote certificate is invalid according to the validation procedure."

SMTP Server:
SSL/TLS: enabled (need only TLS)
Using account email address & password, tried multiple accounts

Anyone successfully got this setup, any suggestions would be greatly appreciated.  I have a ticket open with PDQ and Microsoft but have not found a solution yet.




Date Votes

Please sign in to leave a comment.

Didn't find what you were looking for?

New post