Nice post. This works perfectly with an external account hosted in other mail server. But I have the issue using a secondary gmail account set in my main gmail account. I mean, I have [email protected] and [email protected], if I send an email choosing “[email protected]” from drop-down list, the header includes “[email protected]” in sender field.
I have tested checking or not “Treat as an alias” field from gmail accounts settings, with the same results.
Do you know any way to send the correct sender in this case?
I would like to do this without login in the other account.
Thank you for your time!