:-) On 7/2/21 5:02 PM, post...@ptld.com wrote:
Do you mean this literally? Stopping me from sending an email using my mail server that claims to be from 'your.domain'? You can't, you can only publish SPF records and hope the receiving mail server of the spoofed email rejects it based on those records.Or do you mean just preventing users on your mail server from sending a spoofed from address? In that case reject_sender_login_mismatch does this completely on its own.
OK, small clarification:I'd like to disable any mail from 'my.domain' from external networks and non authenticated users...
...delivered to my users. /m
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