Weasel - an e-mail server for OS/2

Weasel is a mail server supporting the POP3 and SMTP protocols. You need a mail server if you want to set up your computer to accept mail for multiple users. The SMTP component sends and receives the mail, and the POP3 component lets users log in and fetch the mail that has arrived for them.

An e-mail server would not be complete without some sort of junk mail control. Weasel allows you to reject mail from a specified list of hosts, and it lets you specify which hosts are allowed to relay mail via your machine. It also lets you define your own filters. You could, for example, write a Rexx script that rejected mail that contained certain keywords.

Username aliases are supported, and you can create an alias that will expand out to a mixture of local and non-local addresses.

Configuration of the server is easy. You have the choice between a traditional text-based Setup program or a PM-based one. You can also do remote configuration.

You may configure Weasel either to host a single domain, or multiple mail domains.


You can download the latest version of Weasel from ftp.pmoylan.org/Weasel/. Source files can be found in the same directory.
Weasel may also be found at the Hobbes archive. Typically this is the most recent "major update", so it might be slightly behind the version kept on the pmoylan.org server.

Optional extra: an IMAP4 addon for Weasel Pro. This, however, is failing for some IMAP clients, so cannot be recommended at present.

If downloads from my site are slow for you, you might like to try the following alternatives:

(If anyone else is mirroring Weasel, please let me know so that I can update this list.)

Read the manual

The Weasel manual is available on-line, in English and Swedish versions.
Sorry, but the other non-English versions are no longer available.

Other information

To find out more, you can take a look at some  screen shots. All Weasel users should check the Weasel tools and Weasel filters web pages, to find software that can be useful in conjunction with Weasel.

OS/2 home
Weasel home
Screen shots

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Author: Peter Moylan

Last updated: 29 May 2018