I have a customer who, about 10 days ago, started receiving their email with [email protected] [mailto:[email protected]] On Behalf Of charles (or whomever sent the email) in their from line. I had support reset the exim but nothing has changed. As far as I know, out of about 40 customers, this is the only one having this happen. Does anyone have any suggestions that might help?
I should also tell you that this customer is in the process of setting up their own in-house server (I assume to network all their computers together). The also have another web site hosted by a different company that doesn't seem to be having this difficulty.
I'm not quire sure I fully understand what you're saying and I wonder if you could perhaps clarify a little.
It sounds like you're saying your client is receiving email addressed to "[email protected]", is this correct? Or are you saying they're receiving an amount of unknown email from "[email protected]" where they shouldn't be?
"On Behalf of" is something Google Mail use to avoid abuse of accounts on their system. If your account is [email protected] and you set up another address to use such as [email protected], certain email clients such as Outlook will display the from address as [email protected] on behalf of [email protected]
or is that the other way around????
Anyway, the point is that this allows Google to send mail from other addresses without becoming a haven for spammers.
Are you perhaps describing a similar set-up?
Slowdive has stated the case pretty well, except it didn't have anything to do with Google and gmail. The mail was coming through with the "on behalf of" statement in the From line instead of the name of the person who sent the mail. It turns out the the mail was in fact being forwarded (although to themselves, just on a different server) and the setup on the other server was the culprit.
I'm not too familiar with exim setup, as I've primarily used sendmail - but I do remember seeing in WHM/cPanel Exim Setup, the following option:
Always set the "Sender:" header when the sender is changed from the actual sender. Unchecking this will stop "On behalf of" data in Microsoft(R) Outlook, but may limit your ability to track abuse of the mail system.
I believe this has to do with the headers specifying one address for the "From" and "Reply-To" lines, and another address being specified under "Sender" - Microsoft and possibly some other email programs may interpret this as being from "Person A" (Sender) on behalf of "Person B" (From)
SSA-Kris you are exactly right and thank you for the reference to WHM/cPanel. I looked this forum and that one both over knowing that I had seen it somewhere and wouldn't you know I couldn't find it. I am not sure if it is a fluke in M$ mail programs or in Exim but if you don't change the headers, you will get it every time.