I can use O365 with SMTP settings to send out test e-mails using: https://h-educate.com/super-email-sender/
But as soon as I want to send out using the RUN CAMPAIGN button I get:
ERROR: BDAT command has been rejected by ….. the rest I can’t read.
What’s happening if you get this error message?
But it works with a test e-mail address. One by One all will come in and are okay. Using the RUN CAMPAIGN button I get the error.
Maybe this helps? https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-6-11-in-exchange-online
Can’t use O365 as smpt server I Guess?
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