Hi!

I have configured Odoo mail in an On-Premise instalaction, but I have some doubts about how it really works

  -> If I have only one Outgoing Server configured, ALL mails are sended using ONE account and SMTP server. But I have a lot of aliases and email accounts (for services, users... etc) each with different domains (hotmail, gmail, enterprise domains...) How is possible that my Outgoing Server accepts and delivers mail from so different domains? And it is suppossed that SPF should not allow this behavior...

  -> In other hand, I see that when someone replies to an email sent by Odoo, it is sent to catchall (or whatever account I have defined in 'mail.catchall.alias'). From there, the Odoo mailgate uses parameters form mail header, like 'Message-Id:', 'References', or 'X-Odoo-Objects' to 'route' then to final recipients. I have created the catchall account in my mail server. My doubt is:  do I need to configure this account as the default catchall account for my domain (all mails for unknown recipients are sent to this account) or this is not necessary? Because it is supossed that replies are yet sent to this account

Thanks a lot!