Infos:
- Used Zammad version: 2.6.x
- Used Zammad installation source: (source, package, …): Ubuntu apt (https://dl.packager.io/srv/deb/zammad/zammad/stable/ubuntu 16.04 main)
- Operating system: Ubuntu 16.04.05 LTS
- Browser + version: FireFox 62.0.3 (WIndows 10)
Expected behavior:
Sending E-Mail trough Office 365 SMTP Account
Actual behavior:
Sometimes (maybe 1% of all answers) I get:
Can’t use Channel::Driver::Smtp: #<Net::SMTPAuthenticationError: 535 5.7.3 Authentication unsuccessful
Steps to reproduce the behavior:
Configure office365 as sending smtp
Is there any existing knowing bug?, some of our answers will not be sent from Office365 SMTP, because auf unsuccessfull Authentication. Then we have to reenter our credentials at E-Mail Accounts Settings Page, and all is fine again for some days.