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Log Automation and Exchange Online failed to authenticate

Hello all,

Has anyone here successfully got their Sonicwall to authenticate to EXO? I'm pretty sure I have everything setup the way it should be since I've done this before with other appliances.


mail server:

advanced settings: smtp port 587

Security method: startTLS (also tried SSL/TLS)

Enable SMTP Auth

verified the correct user/password by logging into to successfully

SMTP is turned on in EXO for that account.

Category: Mid Range Firewalls


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