The departmental email server will be upgraded, starting at 11am on Wednesday July 13, 2016. We expect that the upgrade will take about one hour.
The new server will have stronger security and updated software. The web client, squirrelmail, will be slightly newer and there seem to be no significant changes in its behaviour. Access to our email system by the POP3 protocol will no longer be supported (an email about this was sent more than 3 weeks ago to affected users).
After the update please let requests@math.toronto.edu know if you discover any problems.