MailClient.Accounts.AuthenticationAbortedException

Gary February 5, 2023, 8:07pm 21

Problems when sending emails via SMTP with outlook.com accounts Announcement

This week Microsoft made some changes on their mail servers, which disabled OAuth login for the SMTP protocol on their accounts. This means those using free MS accounts, such as @outlook.com, @hotmail.com, @live.com and similar stopped being able to send emails from eM Client, the messages either got stuck in Outbox or you received this error: [SMTP] MailClient.Accounts.AuthenticationAbortedException: Authentication aborted. We have reported the problem to Microsoft and also created a workar…

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