I build a MIAB and my Chevereto use this smtp sent mail.All mail can sent and reached .But i can’t find those email which sent by Chevereto smtp in the MIAB’s mail client (Roundcube or whatever).
The server saves messages that it is told to save. Your SMTP client will be telling the server to save them. If messages sent via ‘Chevereto’ are not being saved it is because ‘Chevereto’ is not sending the message to the server to be saved.