I've Googled extensively several time but I cannot find a solution.
On my virtual webserver that I manage with DirectAdmin, since an update, I cannot send mail anymore from my Thunderbird identities I set up for my main mailaccount.
Basically I have one emailaccount, yet I want all mail from several domains on my server end up in that one account. With Thunderbird Identities, this was never a problem. I could send and receive mails for/from info@domain1.com and info@domain2.com in the same IMAP account for info@domain1.com.
However, sending mails has stopped working for anything than the main account. The error is the famous "My Alias Name ( <info@domain2.com> ) must match your authenticated email user ( info@domain1.com )".
The DNS of the domains all point to the same server and the websites are also all on that server. Receiving mail goes fine (via a spamfilter construction that accepts multiple domains and delivers to the same address). I run CentOs 7 and DirectAdmin.
I understand that they close the door for external email-addresses for anti-SPAM. However the domains I use in the "From: " field are from domains on the same server! And I do absolutely NOT want add more email accounts to my mail client (Thunderbird), I want it to work like it always did.
Is there anyway to tell EXIM to accept mails via SMTP from any emailaddress that originates on this server, or to whitelist domains? I tried looking at exim.conf but I don't understand enough of it.
Is there anyway I can tell EXIM to accept From-addresses from all local domains?