Rt users not getting mail - binned as spam?

hi
sorry if this has been said before, but the archive
seems down and i urgently need to resolve this.
RT 3.2.2 on fedora and mysql. I send out mails to
certain companies and they don’t get them and I can’t
see a bounce , but internally it works fine …
I’m wondering if

  1. they could be binning them because of
    Precendence:Bulk header and thus how to change it.
  2. some other unknown reason

The mail is going back to the correct address based on
the ticket.
Elaine

Send instant messages to your online friends http://uk.messenger.yahoo.com

a message of 24 lines which said:

I send out mails to certain companies and they don’t get them and I
can’t see a bounce , but internally it works fine …

What is in the log file of your mail server?

I’m wondering if

No need to guess when the correct response is just a grep away.