Yes, they support SMTP and IMAP just fine. In fact, they're one of the few providers that actually support IMAP push with iOS's Mail: https://blog.fastmail.com/

Yes, they support SMTP and IMAP just fine. In fact, they're one of the few providers that actually support IMAP push with iOS's Mail: https://blog.fastmail.com/2016/12/21/what-we-talk-about-when-we-talk-about-push/ https://blog.fastmail.com/2016/12/21/what-we-talk-about-when...