I'm using MDaemon as out mail server and the last days I get an error "554 Message does not conform to standards" for emails sent from one of the machines. Any idea what may be causing it? Other machines work fine.
More info....this is the log file:
Mon 2008-10-20 16:11:37: Session 7831; child 1; thread 3908 Mon 2008-10-20 16:11:36: Accepting SMTP connection from [80.78.72.135 : 43579] Mon 2008-10-20 16:11:36: Performing PTR lookup (135.72.78.80.IN-ADDR.ARPA) Mon 2008-10-20 16:11:36: * Error: Name server reports domain name unknown Mon 2008-10-20 16:11:36: * No PTR records found Mon 2008-10-20 16:11:36: ---- End PTR results Mon 2008-10-20 16:11:36: --> 220 ikubinfo.com ESMTP MDaemon 9.5.2; Mon, 20 Oct 2008 16:11:36 +0200 Mon 2008-10-20 16:11:36: 250 ikubinfo.com Hello RS, pleased to meet you Mon 2008-10-20 16:11:36: Mon 2008-10-20 16:11:36: Performing IP lookup (ikubINFO.com) Mon 2008-10-20 16:11:36: * D=ikubINFO.com TTL=(633) A=[216.75.60.232] Mon 2008-10-20 16:11:36: * P=010 S=000 D=ikubINFO.com TTL=(708) MX=[mail.ikubinfo.com] Mon 2008-10-20 16:11:36: * D=ikubINFO.com TTL=(633) A=[216.75.60.232] Mon 2008-10-20 16:11:36: ---- End IP lookup results Mon 2008-10-20 16:11:36: Performing SPF lookup (ikubINFO.com / 80.78.72.135) Mon 2008-10-20 16:11:36: * ikubINFO.com 80.78.72.135; matched to SPF cache Mon 2008-10-20 16:11:36: * Result: pass Mon 2008-10-20 16:11:36: ---- End SPF results Mon 2008-10-20 16:11:36: --> 250 , Sender ok Mon 2008-10-20 16:11:36: Mon 2008-10-20 16:11:36: Performing DNS-BL lookup (80.78.72.135 - connecting IP) Mon 2008-10-20 16:11:36: * sbl-xbl.spamhaus.org - passed Mon 2008-10-20 16:11:36: * relays.ordb.org - failed Mon 2008-10-20 16:11:36: * bl.spamcop.net - passed Mon 2008-10-20 16:11:36: ---- End DNS-BL results Mon 2008-10-20 16:11:36: --> 250 , Recipient ok Mon 2008-10-20 16:11:37: 354 Enter mail, end with . Mon 2008-10-20 16:11:37: Message size: 389 bytes Mon 2008-10-20 16:11:37: --> 554 Message does not conform to standards Mon 2008-10-20 16:11:37: 221 See ya in cyberspace Mon 2008-10-20 16:11:37: SMTP session terminated (Bytes in/out: 491/319)
Just had this issue with an Outlook client going through a Exchange server to an external address on Windows XP. Clearing the temp files seemed to do the trick.
554 is commonly used by dns blacklists when shooing away blacklisted servers. I'm assuming
Mon 2008-10-20 16:11:36: * relays.ordb.org - failed
in the log you included is to blame.
To resolve problem go to the MDaemon-->setup-->Miscellaneous options-->Server-->SMTP Server Checks commands and headers for RFC Compliance
Can be caused by a miss configured SPF record on the senders end.
Just had this issue with an Outlook client going through a Exchange server to an external address on Windows XP. Clearing the temp files seemed to do the trick.
To resolve problem go to the MDaemon-->setup-->Miscellaneous options-->Server-->SMTP Server Checks commands and headers for RFC Compliance
Can be caused by a miss configured SPF record on the senders end.
554 is commonly used by dns blacklists when shooing away blacklisted servers. I'm assuming
Mon 2008-10-20 16:11:36: * relays.ordb.org - failed
in the log you included is to blame.
Source: Stackoverflow.com