Ok, so this is an update to the situation. I can send emails from my .mac address and .mac /.me aliases and they appear as sent from the actual address that they were sent from.
I have a normal gmail address via imap and emails sent from this appear as sent from it when received
I have isolated the problem to my own domain email in mail which is imap'd to mail from google apps
I have 3 email addresses for my domain.
one@mydomain.com,
two@mydomain.com and
three@mydomain.com.
Through googles apps these each have there own login when accessed on the web and I haven't set anything so that they appear sent from the main account (at least I don't think that I have and also I hadn't been playing around with any settings.)
The only thing that I did initially was to change the settings in prefences > composing so that the default account was
one@mydomain.com and not to send from the mailbox that was selected. Since then this is when the problem arose so I then changed it back to send from the selected mail box.
However it was my understanding that no matter what these settings you could override this and manually select the from address when composing.
Anyway, even deleting the
one@mydomain.com account from mail hasn't stopped the problem.
All emails that I send from any of the three appear as sent from
one@mydomain.com.
I have gone as far as deleting
one@mydomain.com from mail, and still any emails sent from two@.. or three@... appear from this one@...
Could this be a server issue? As in the server that is used to send out emails from mail appear to be
one@mydomain.com for the two.. and three..?
I am very confused! lol