[1.5.3] email notifications are not sent (URGENT)

[Nuno Zimas]

Ever since we ugraded to latest 1.5.3, yesterday, email notifications are no longer delivered.
We have changed from PHP Mailer to gmail's SMTP server today and sent a test message using oGoo's Mailing Test tool, which got delivered.
However, notifications do not work at any level, making it extremely tough to keep up with the workload.

[Nuno Zimas]

I have managed to trace the issiue back to cron.
If notifications through cron are disabled (oGoo generated on the fly, therefore), it works.

The croinjob remains unchaged and looks as follows:

10 * * * * php  /path/to//opengoo/cron.php

Until yrsterday it has been working flawlessly.

Nuno.