Re: [Dovecot] lmtp bouncing -- Invalid parameters (in reply to MAIL FROM command)

31 Aug 2011


      On Wed, Aug 31, 2011 at 01:03:07PM +0200, Jan-Frode Myklebust wrote:
...
I just configured postfix' virtual_transport to point at my dovecot
director, but am seeing occational problems like this:
Aug 31 11:50:06 smtpgw postfix/lmtp[5339]: 69E2F5410D: to=email@example.net, relay=loadbalancers.example.net[192.168.42.17]:24, delay=0.15, delays=0.14/0.01/0/0, dsn=5.5.4, status=bounced (host loadbalancers.example.net[192.168.42.17] said: 501 5.5.4 Invalid parameters (in reply to MAIL FROM command))
Further digging shows that these messages are from an address containing
quotes and spaces:
mail from:<"a b"@no.no>
501 5.5.4 Invalid parameters
Testing with postfix + dovecot lda (v1.2.16) the messages gets
trough just fine. Is this auth_username_chars kicking in, or some
other check of valid characters in lmtp from ?
-jf