Recovering a password uses getSiteUrl which also delivers a portnumber.

Within a proxy-environment, WebGUI is running on a non-standard port.

In the recovery-message, this port is added to the sitename,
which will not work if the mod_perl-port is blocked by a firewall.

My solution (to change it quickly) in emailRecoveryFinish was:

...

my $url = $session->url->getSiteURL;
$url=~s/:([0-9]*)//;