Plesk 10.4.4 incompatible with MS Outlook?

[alphredo]

We care experiencing a huge issue with all our domains (and related customers) managed by (Plesk 10.4.4 Update #47).
All the email accounts that are trying to send email using Outlook have autentication failure.
The problem in only with sending email (SMTP autentication error) and only with outlook clients.

Is there any Plesk Outlook incompatiblity??
This is a URGENT issue, we have all the customers quite upset.

 

[MarisaD]

Please check the outlook settings that 'use SPA' is not selected and that in outlook 'my outgoing server requires authentication..use same settings as incoming'

Unless you have PCI the server or changed settings to use SMTPS instead the above should be the best settings.


We manage thousands of servers with Plesk 10.4.4 working with Outlook so there is no known issue it is just a matter of getting the settings right.

try other mail clients to see if it is a wider issue such as connecting to port 25.