In trying to send mail to an alioth ml I got: The following message to <pkg-mdadm-devel@lists.alioth.debian.org> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 550-"Verification failed for <prvs=rodrigo=594bf1d30@nul-unu.com>\nCalled: 207.44.202.99\nSent: RCPT TO:<prvs=rodrigo=594bf1d30@nul-unu.com>\nResponse: 550 5.1.1 <prvs=rodrigo=594bf1d30@nul-unu.com>... User unknown\nSender callout failed: Sender adress can't be verified trough SMTP check." Shouldn't such tests cause, at most, mail to be queued up for moderation? There probably are many users who are in no position to do anything about sender verification failures[1], and this can efectively cut them out from communication with many Debian projects. [1] Me, for one. My home ISP demands I only send mail through their SMTP relay.
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