https://bugs.exim.org/show_bug.cgi?id=2147
--- Comment #8 from Jeremy Harris <[email protected]> --- No, but try 2137. > Obviously, the random callout is supposed to just be an optimisation, to avoid callouts for subsequent specific localparts. Not quite. It's to find out whether the target gives reliable information at RCPT time, or just accepts everything blindly. Certainly it'll have the effect you describe, should blind-acceptance be discovered - but that only tells us that attempting to do callout verification is pointless. It'll result in us later spending resources on an actual message transmission, which is hardly an optimisation. > We should never defer the > acceptance of *this* localpart, just because the random callout got a 4xx > response. I disagree. -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-dev Exim details at http://www.exim.org/ ##
