Today, I invested most of the day for Manual cleanup of email bounces

We are getting closer (still many days of work) of the clean up being done. When this is solved, we can switch to the new mail server.

I asked Josaphat to start working on Email bounce handling documentation (and thus testing) as this will make work faster.

I tried sending myself a test email from tiki.org (via Sendmail) to two different gmail addresses and none arrived. I think Gmail may just be dropping all email coming from the tiki.org server. So we'd better move to new server ASAP.