Our free tools for Mac OS X Server Mail Services – spamtrainer and mailbfr – have been downloaded more than 100’000 times and are helping system administrators looking after Mac OS X Servers from 10.3 to 10.13.


Our free tutorials and whitepapers related to Mac OS X Server Mail and Web Services have been downloaded more than 500’000 times. The tutorials are available for a wide range of topics and for Mac OS X Server versions from 10.4 to 10.13.


While we are happy to provide free support through our Tutorials, FAQs and the occasional e-mail advice, it cannot replace personalised support. A professional can fix in a matter of hours what could take you days of trial and error.

Where is the crontab file located for mailbfr?

mailbfr uses the root crontab. You can either edit it directly or use mailbfr -i to add/remove the cron job.

Where can I find all available options for spamtrainer?

Basic instructions are given in the enclosed documentation. All options are listed in the online documentation. To see it, issue "man spamtrainer".

When backing up the bayes database, do I need a path or a filename?

Both. You will need to tell spamtrainer the filename and its location. For example: /volumes/mydisk/mydirectory/myfile

Why do my mails NOT get deleted when using “spamtrainer -d”?

The most likely causes are: The junkmail/notjunkmail mailbox is being used by another user when spamtrainer wants to access it. The mail header contains a date in the future (very common with SPAM). The junkmail/notjunkmail mailbox is corrupted and needs reconstruction. You have altered the ACLs on your junkmail/notjunkmail mailbox.

spamtrainer thinks the path I have given is not correct?

Most likely your path contains spaces. This is generally not advisable. If you cannot take the spaces out of your path for some reason, you will need to “escape” them.

Do I need to manually stop/start mail services when using spamtrainer?

No. If services need to be stopped/started, spamtrainer will do this for you.


Take advantage of our mail server checkup service. For a flatrate of $50 (€38) we will run a full diagnostic of your mail server, report on its status, and make recommendations for improvements. If you would like us to check your mail server or need more information, please use our contact form.