I setup a default adress in CiviMail -> From Email Adresses , like this :
but the problem is that when I send mails, the "From adress" change and become :
(I specify that I use a gmail account in the SMTP sending settings)
Is it possible to force that mailing adress so it become "firstname.lastname@example.org" ?
At the begining, I was using a private adress (in my own domain) for civiCRM SMTP's settings (and it worked fine), but lately we need to migrate these mails to Office365 / Exchange mails and I have never been able to get CiviCRM mailings to work with the new Office365/Outlook/Exchange settings, that's why I opted for an SMTP account that uses gmail.