No, because IMAP clients are continuously creating and destroying IMAP sessions. The correct solution if you need two-factor authentication for a mail server is to put the IMAP service behind a VPN server and permit access to email only via the VPN, which in turn has two-factor authentication. ian On 15/01/2021, 17:13, "Gabriele Bulfon via Info" <info@xxxxxxxxxxxxxxxxxx> wrote: Hi, is there any possibility to have Cyrus Imap run some kind of two factor authentication? Be it OTP or OAuth or anything else that will be supported by imap clients. Gabriele Sonicle S.r.l. : http://www.sonicle.com eXoplanets : https://gabrielebulfon.bandcamp.com/album/exoplanets |