Matus UHLAR - fantomas writes:
Hello,can courieresmtpd validate existence of mail addresses in the domains that are not local (listed in hosteddomains/locals)?
No.
We want to split SMTP servers from MX servers, and I'm curious if it wouldn't result to accepting recipients that don't exist and are reject by "550 user <...> unknown" messages. We may distribute users' lists onto the SMTP servers of course, but we'd like to keep delivery on the MX servers.
This is typically done by exporting the user list as aliases: [email protected]: [email protected]
All nonexistent addresses would therefore be rejected as unauthorized relaying.
Another question is - can courieresmtpd validate existence of addresses provided in mail from: in the same way as it validated rcpt to: ?
Nope.
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