Outlook fails to send an email: SASL authentication failure

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4 comments

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    Miomir Besarabic

    On Ubuntu is /etc/postfix/sasl and not /usr/lib64/sasl2. Please correct your article.

     

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    Ivan Postnikov

    Hello @Miomir,

    Thank you for notice. 

    The article will be updated.

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    Tara

    You might also need to make this change in the dovecot.conf file

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    Ivan Postnikov

    Hello @Tara,

    Thank you for the notice. This article is devoted to the error:

    mail.example.com postfix/smtpd[17318]: warning: SASL authentication failure: realm changed: authentication aborted

    In such case, Dovecot restart is not required.

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