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Why Microsoft Need send email from O365 not from SMTP gateway
Dear Experts, I have a question about O365 Mail flow, Microsoft want send email directly to internet and not trough SMTP gateway also configure DKIM, SPF, and MDRAC from O365 Side. Can someone...
The question : need reason Why i need to send email directory to internet without pass to 3rd party gateway
You still get anti-spam and anti-malware as well as message authentication if you decide not to use a 3rd party gateway. The question you need to be asking is "What will a 3rd party gateway give me that I don't get natively with Exchange Online?" Once you have the answers to that question you can decide on the mail routing