Score:-2

Postfix to O365 tenant directly

np flag

I am planning to have a postfix smtp relay that will send emails to an O365 tenant.

Is this possible through port 25 without using SASL?

jp flag
No. Why would Microsoft implement an open relay?
I sit in a Tesla and translated this thread with Ai:

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Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.