There is a bug in some older rulebase versions for spam assassin 3.x which will cause an extra 3.4 points to be added onto incoming mail which greatly increases the chances of the mail being marked as spam. The rule “FH_DATE_PAST_20XX” checks to see if the email is from the future, however, since the new [...]
Entries Tagged as 'Protocols'
SpamAssassin rulebase bug – FH_DATE_PAST_20XX
January 5th, 2010 · No Comments
Tags: Networking · Protocols · SMTP
Plesk greylisting handlers_stderr: qmail-inject: fatal: qq trouble in home directory
December 21st, 2009 · No Comments
It appears that when grey listing was enabled on Plesk 9.2.3 for Fedora 8 there maybe an error in the maillog like: handlers_stderr: qmail-inject: fatal: qq trouble in home directory Command “/usr/local/psa/bin/grey_listing -i” showed that grey listing was running. After disabling grey listing with “/usr/local/psa/bin/grey_listing -u -status off” this error went away. Perhaps a grey [...]
Tags: Control Panels · Linux · Operating System · Protocols · SMTP
qmail alert: cannot start: unable to open mutex
September 23rd, 2009 · No Comments
For some reason the mail log was showing lots of: Sep 23 09:40:03 hostname qmail: 1253695203.637058 alert: cannot start: unable to open mutex Sep 23 10:32:16 hostname qmail: 1253698336.515510 alert: cannot start: unable to open mutex Sep 23 10:32:21 hostname qmail: 1253698341.425333 alert: cannot start: unable to open mutex and qmail was not working properly. [...]
Tags: Linux · Networking · Operating System · Protocols · SMTP
rblsmtpd 451 Sender has sent to LashBack
August 14th, 2009 · No Comments
Bounce message received: A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: user@fromaddress.com Malformed SMTP reply from mail.server.com [192168.1.1] in response to initial connection: rblsmtpd: 192.168.6.62 pid 14483: 451 Sender has sent to LashBack Unsubscribe Probe accounts: retry timeout [...]
Tags: Linux · Networking · Operating System · Protocols · SMTP
ProFTPd enable FXP uploads
May 22nd, 2009 · No Comments
Wanted to enable FXP for an upload on the proftpd server. URL: http://www.proftpd.org/localsite/Userguide/linked/x908.html Was receiving errors in the log files: May 21 12:30:34 server proftpd[6498] localhost (hostname[111.111.143.131]): Refused PORT 222,222,333,11,17,43 (address mismatch) May 21 12:30:36 server proftpd[6498] localhost (hostname[111.111.143.131]): SECURITY VIOLATION: Passive connection from 222.222.333.11 rejected. Enabled the following in the global configuration file which [...]
Tags: Networking · Operating System · Protocols