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.

How to Edit Text Configuration Files on OS X Server

Managing OS X Server, quite often requires one to manually edit text based configuration files. As do many of our tutorials and FAQs. There are many ways of doing this. You can use a Terminal based editor or one with a fancy GUI. What is paramount though, is that you use a Plain Text Editor […]

How to copy (bcc) all mail from specific senders to another address

Sender BCC Maps allow you to specify one or more senders along with a bcc_recipient address. When an incoming or outgoing message matches sender_bcc_maps, the message is BCCd to the specified address A few examples BCC all mail sent from a fax or copier to a Fax/Copier archive Bob wants all mail he sends from […]

Why don’t I see X-Spam-Status headers ?

By default, amavisd adds the X-Spam-Status header only when the score is 2.0 or higher. Edit /Library/Server/Mail/Config/amavisd/amavisd.conf and look for $sa_tag_level_deflt = 2.0; # add spam info headers if at, or above that level You want to see X-Spam-Status headers on all mail, even non-spam – so make it a negative number. $sa_tag_level_deflt = -999.0; […]

MCrypt Installer for OS X Server

Compatibility OS X 10.11.x El Capitan with Server app 5.x (SIP compatible) OS X 10.10.x Yosemite with Server app 4.x or 5.x OS X 10.9.x Mavericks with Server app 3.x OS X 10.8.x Mountain Lion with Server app 2.x Note: If MCrypt is already installed and loadable by PHP, the installer will exit without making […]

How to enable/disable greylisting on OS X 10.10 Yosemite and OS X 10.11 El Capitan With Server 5?

Click here to learn more about greylisting. To disable greylisting: sudo serveradmin settings mail:postfix:greylist_enabled = no sudo /Applications/ reload To enable greylisting: sudo serveradmin settings mail:postfix:greylist_enabled = yes sudo /Applications/ reload

How Can I Copy (Bcc) All Incoming and Outgoing Email to an Email Address on OS X Server 5?

In previous OS X Server versions there was a GUI setting which allowed you to “Copy all mail to…” an email address of your choice. It does not exist anymore, but you can still set this parameter by using the command line: sudo serveradmin settings mail:imap:postmaster_address = “myemailaddress@mydomain.tld” sudo serveradmin settings mail:postfix:always_bcc_enabled = yes Make […]


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