# ZMailer technical homepage

The ZMailer is a high performance multiprocess UNIX system mailer [ a.k.a. MTA per X.400 parlance ] available free of charge at server ftp://ftp.funet.fi/pub/unix/mail/zmailer/

The source-tree is also available thru Anonymous CVS.

Some of the documents of the ZMailer have been HTMLized, and are available at following links:

- Overview of things
- README about state of the matters
- README.PERFORMANCE about things affecting on system performance
- How to do the installation
- About the smtp-policy control facilities
- Snapshots of the manual will appear in here, comments are appreciated

  There is also a mailinglist zmailer@nic.funet.fi on which you can subscribe yourself by sending email to mailserver@nic.funet.fi at which email you write a message content as:

  #### subscribe zmailer your name

  On that list you can ask ``wizards'' of the ZMailer to explain how you can get it to handle various odd things you might want to do, and get your system better supported by the base releases.

  Archive of the list is at ftp://ftp.funet.fi/pub/unix/mail/zmailer/listlog/ Do browse it thru, your question might have been answered there already.

  The original author of the ZMailer is Rayan Zachariassen (hence the ``Z'' at the name) who was at University of Toronto back in late 1980es, and didn't like the way the sendmail was able to cause serious system loads when doing deliveries, nor the way how it appeared to find a new security hole at the sendmail nearly every week... (That was back n 1980es with sendmail-5.x.)

  The current author, and keeper of ZMailer is Matti Aarnio, who has been doing things of his interests to the ZMailer since 1990, and has been sole keeper of mailer since 1992, when Rayan went to private sector, and disappeared from academic community.

  Matti Aarnio's email address is mea@nic.funet.fi