Recent Blog ArticlesMost RecentMost LikesRe: Announcing OAuth 2.0 support for IMAP and SMTP AUTH protocols in Exchange Online Sean_Stevenson Something that is super confusing right now with Admin center for this mailbox level Authenticated SMTP is that it is checked on, even when it is notexplicitlyon under the hood....Re: Announcing OAuth 2.0 support for IMAP and SMTP AUTH protocols in Exchange Online Sean_Stevenson That is unfortunate to hear. It will cause SaaS companies, such as ours, to bear the brunt of this poor, non obvious experience mutual customers, which in turn will cause us to re...Re: Announcing OAuth 2.0 support for IMAP and SMTP AUTH protocols in Exchange Online Greg Taylor - EXCHANGE jkemp1011005 Our implementation experience is that with older Exchange accounts the OAuth SMTP authentication works, but with newer accounts it does not, due to an SM...