SMTP error 554

Question

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

User · Answer

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

User · Answer

Can be caused by a miss configured SPF record on the senders end

User · Answer

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

User · Answer

SMTP error 554 is one of the more vague error codes  but is typically caused by the receiving server seeing something in the From or To headers that it doesn t like  This can be caused by a spam trap identifying your machine as a relay  or as a machine not trusted to send mail from your domain   We ran into this problem recently when adding a new server to our array  and we fixed it by making sure that we had the correct reverse DNS lookup set up

User · Answer

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

User · Answer

SMTP error 554 is one of the more vague error codes  but is typically caused by the receiving server seeing something in the From or To headers that it doesn t like  This can be caused by a spam trap identifying your machine as a relay  or as a machine not trusted to send mail from your domain   We ran into this problem recently when adding a new server to our array  and we fixed it by making sure that we had the correct reverse DNS lookup set up

User · Answer

SMTP error 554 is one of the more vague error codes  but is typically caused by the receiving server seeing something in the From or To headers that it doesn t like  This can be caused by a spam trap identifying your machine as a relay  or as a machine not trusted to send mail from your domain   We ran into this problem recently when adding a new server to our array  and we fixed it by making sure that we had the correct reverse DNS lookup set up

User · Answer

To resolve problem go to the MDaemon-- setup-- Miscellaneous options-- Server-- SMTP Server Checks commands and headers for RFC Compliance

User · Answer

SMTP error 554 is one of the more vague error codes  but is typically caused by the receiving server seeing something in the From or To headers that it doesn t like  This can be caused by a spam trap identifying your machine as a relay  or as a machine not trusted to send mail from your domain   We ran into this problem recently when adding a new server to our array  and we fixed it by making sure that we had the correct reverse DNS lookup set up

User · Answer

To resolve problem go to the MDaemon-- setup-- Miscellaneous options-- Server-- SMTP Server Checks commands and headers for RFC Compliance

User · Answer

To resolve problem go to the MDaemon-- setup-- Miscellaneous options-- Server-- SMTP Server Checks commands and headers for RFC Compliance

User · Answer

To resolve problem go to the MDaemon-- setup-- Miscellaneous options-- Server-- SMTP Server Checks commands and headers for RFC Compliance

User · Answer

Can be caused by a miss configured SPF record on the senders end

User · Answer

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

[email] SMTP error 554

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