Whitelisting the sending host in local_host_whitelist gets around the
problem, but obviously I don't want to whitelist everybody.
Other "temporarily rejected" lines list a cause, such as "greylisted"
or "could not complete sender verify", but I'm stumped by these
non-specific rejects. My two-part question is (1) how do I debug such
generic messages and (2) in case part 1 fails, what do you think is
the cause? Googling the list archives and Exim FAQ didn't turn up any
good match for this, not that I recognized anyway.
exim -bV says:
Exim version 4.67 #1 built 04-Oct-2007 20:49:12
Copyright (c) University of Cambridge 2006
Berkeley DB: Sleepycat Software: Berkeley DB 4.3.29: (September 6, 2005)
Support for: crypteq iconv() IPv6 GnuTLS move_frozen_messages
Lookups: lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmnz
dsearch nis nis0 passwd
Authenticators: cram_md5 plaintext
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp
Fixed never_users: 0
Size of off_t: 8
Configuration file is /var/lib/exim4/config.autogenerated