I have the "company.com" domain and the alias "company.it".
When "email@example.com" writes to "firstname.lastname@example.org" the email arrives to my inbox. So simple.. but the destination appears as ".it", so if I try to answer the zimbra-webclient keeps "email@example.com" in the "cc" fields.
It seems to me that the zimbra-webclient feels "firstname.lastname@example.org" as a different address, not the mine.
To solve I created the single alias "email@example.com" => "firstname.lastname@example.org", and it works (yes, it is quite annoying: I already made the domain alias! but it works)
But I have the same problem with the other clients (thunderbird, smarthphone, etc.). I configure thunderbird for "email@example.com", so it keeps "firstname.lastname@example.org" in the "cc" field, and I can do nothing to solve the problem (in the client-side).
Nobody else had this problem?
I think the best solution is to rewrite the "To: xx" header in order to switch from ".it" to ".com" before the email arrives in the inbox, but I don't know how I can do.
Can the "Domain Masquerading" solve this problem? Or can I add an external header filter,made by myself? Or.. any other idea will be appreciated.