ACC's webmail project PUSS (ePost Umu Snabbt och Snyggt, which translates to Email Umu Quick and Good-looking) started in May 1998 when we found out that there was a big need amongst students and staff at Umeå University to be able to check their mail in a reasonably secure and simple way.
In the beginning all development was done in the programming language Perl with the intentions that the final thing would work as a CGI-script. Unfortunately (at the time) development stopped when the primary developers became too busy.
In July 1999 the project was resumed, this time based on the existing product IMHO as a starting point. To this we have added functionality to handle several mailservers and domains plus some small features we were missing.
In 2012 the software was replaced with a slightly modified version of Roundcube.
For more information please visit puss.acc.umu.se.