I have seen these command rejected earlier too while sending from Mail box. One of our clients where we get such answers from, admin told us, SERP sends incorrect email headers.
Hi,
Some incoiming external e-mails, like invitation for scheduled Zoom meeting, comes with special attachement .ics to create an event in calendars. When such e-mail is received by SERP mail syste...
Hi,
I checked option "Use External Mail Software" in setting "Mail and Conferences Settings" in module "Mail and Conferences". When I create an invoice email I have a ...
