after upgrade to 21.1 version, I cannot add a secondary email account (in Mail tab, clic on create new account).
Server is running docker-compose installation, behind an HA Proxy with a dedicate mysql database server and a dedicate mail server (cyrus handles IMAP, STMP and sieve).
Strange thing is that when I click on back button (Retour in French), it goes to step 4 SMTP with some errors and same behaviors.
Is there anything to be done to allow smooth user experience when creating a secondary account ?
Thanks and Regards