Quoting Marc Perkel: > I was just wondering if there were known MTAs that don't try all MX > records but only the lowest? Is this something that's common?
I guess by "lowest", you mean the lowest preference number, i.e. the highest priority. qmail ist known for strange behaviour. AFAIR, it does only fall back to lower priority MXs after a connection failure, but not if the connection was established and a smtp error response was given. I'm not astonished. qmail has so many flaws that somebody even bothered to set up a web page documenting it... ah, here it is: http://home.pages.de/~mandree/qmail-bugs.html quote: "... that qmail would never try any other MX than the first it connects to, even if that MX does not reply with a 220 greeting. When the server replies with e. g. a 554 greeting, qmail disconnects and later retries the same server again, ignoring the fact that 554 is a permanent error." -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
