Symptoms
You may receive notifications that common mail providers are no longer in the Common Mail Providers list.
Description
Notification emails are being sent regarding common mail providers no longer existing in the Common Mail Providers greylist, although they remain present, or greylisting is disabled entirely. Similar emails may look like the following:
"The mail provider Microsoft Exchange Online Protection is no longer on the Common Mail Providers list."
You will also find logs of these types of notifications on the server:
[ [email protected] [] ~]# ls /var/cpanel/user_notifications/root/history/*Greylist*
/var/cpanel/user_notifications/root/history/1596779790_Greylist_
The mail provider “Hotmail” is no longer on the Common Mail Providers list..eml
/var/cpanel/user_notifications/root/history/1596779790_Greylist_
The mail provider “Microsoft Exchange Online Protection” is no longer on the Common Mail Providers list..eml
/var/cpanel/user_notifications/root/history/1596779790_Greylist_
The mail provider “Outlook” is no longer on the Common Mail Providers list..eml
/var/cpanel/user_notifications/root/history/1596779790_Greylist_
The mail provider “Symantec Messagelabs” is no longer on the Common Mail Providers list..eml
This does, however, appear to be a one-time false-positive that occurs after an update is run by /scripts/upcp. There is an open internal case, CPANEL-33756, regarding this, which will be actively reviewed by the developers.
You may receive notifications that common mail providers are no longer in the Common Mail Providers list.
Description
Notification emails are being sent regarding common mail providers no longer existing in the Common Mail Providers greylist, although they remain present, or greylisting is disabled entirely. Similar emails may look like the following:
"The mail provider Microsoft Exchange Online Protection is no longer on the Common Mail Providers list."
You will also find logs of these types of notifications on the server:
[ [email protected] [] ~]# ls /var/cpanel/user_notifications/root/history/*Greylist*
/var/cpanel/user_notifications/root/history/1596779790_Greylist_

/var/cpanel/user_notifications/root/history/1596779790_Greylist_

/var/cpanel/user_notifications/root/history/1596779790_Greylist_

/var/cpanel/user_notifications/root/history/1596779790_Greylist_

This does, however, appear to be a one-time false-positive that occurs after an update is run by /scripts/upcp. There is an open internal case, CPANEL-33756, regarding this, which will be actively reviewed by the developers.