We noticed during the last days multiple CRM emails were not sent and they bounced back as undelivered. This was a CRM Online 2016 implementation using the CRM Email router. The SMTP error messages were like 550 5.XXX.YYY (e.g. 550 5.1.8; 550 5.0.350) from different providers (Gmail, Outlook, Yahoo, etc). Using the following online tool mxtoolbox.com, we could … Continue reading CRM Online emails blacklisted – SMTP error 550 5.XXX.YYY
Tag: CRM Email Router
401 Authentication Error, CRM Email Router stopped working
We noticed incoming emails stopped getting in and we saw a 401 Authentication Error in the CRM Email Router server logs. Nothing has changed in the system account used for this Forwarded Mailbox and the password is still valid. Deployment: CRM Online + CRM Email Router + Exchange Online CRM Email Router Configuration: Forward mailbox … Continue reading 401 Authentication Error, CRM Email Router stopped working
