Category Archives: Email

add utf8 subject support to mailwatch 1.0.5

In mailwatch v1.0.5, if the subject of a message is utf8 encoded, it can’t display correctly on the message list page. All the non-ascii characters will be replaced with question mark. For example. the subject “我爱Linux” will appears as “??Linux”. … Continue reading

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Sendmail relay to non standard smtp port via mailertable

The Sendmail mailertable is used to route email. By default, the Sendmail smtp delivery agents used to relay mail will connect to other host through the standard SMTP port 25. From the Sendmail FAQ How do I send using an … Continue reading

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php security: disable functions

Case Study: Some small hosting company provides web hosting service to its clients. The machine runing web server also acts as an email server, which function very well. Then one day, one of its client wrote some php scripts, which … Continue reading

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check_mailstat.pl: a nagios plugin for monitoring mail server statistics

mailgraph is a good tool at analysing mail server log, it supports many MTA(including sendmail, postfix, exim,etc.), with support for mailscanner,spamassassin,etc. As a whole, mailgraph can tell mail server statistics like how many messages sent/ received/ bounced/ rejected/ virus/ spam … Continue reading

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