On the Quarantine Report > Exceptions tab you can define a skiplist of email addresses that should be exempt from receiving daily Quarantine Reports.
Skipping Quarantine Reports
Here you can configure internal email addresses for which no quarantine notifications should be sent. Users whose email addresses are listed here will not receive daily Quarantine Reports. You can enter full email addresses or use an asterisk (*) as wildcard, for example *@example.com.
Note – The skiplist only applies for the SMTP Quarantine Report. If there is a POP3 account specified for the respective user, the POP3 Quarantine Report will be sent nonetheless.
Define Internal Mailing Lists
If the email address of a mailing list is configured in the Mailing list address patterns box (e.g., firstname.lastname@example.org) and a spam message sent to this mailing list was detected and redirected to the email quarantine, the Quarantine Report of all recipients included in this mailing list will contain a link to this spam message. Thus, each recipient can release this spam message individually by entering his email address in a user prompt that appears once the recipient has clicked the Release link in the Quarantine Report.
Note – Mailing lists cannot be whitelisted in the Quarantine Report or the User Portal.
Alternatively, you could enter the email address of that particular mailing list as an additional email address in a local user's profile; this user becoming some sort of a mail manager. Then only this user's Quarantine Report will contain a link to the spam message that was sent to the mailing list. Clicking the Release link will deliver the spam message to all recipients of that mailing list at once.
Note – If the email address of a mailing list is configured as an additional email address in a user's profile, no recipient included in that mailing list gets displayed the links to spam messages that were sent to this mailing list.
However, if the email address of a mailing list is both configured as an additional email address in a user's profile and in the Mailing list address patterns box, then the Release link in that user's Quarantine Report will open a user prompt. The user is then to decide who is going to receive the spam mail by manually entering the respective email address(es) to forward the spam message to.
Finally, if the email address of a mailing list is neither configured as an additional email address in a user's profile nor as a mailing list address pattern, a spam message sent to the mailing list is handled like a normal email, meaning that if any one recipient releases the spam mail, it will be sent to all recipients of the mailing list.
To sum up, whenever the email address of a mailing list is configured as a mailing list address pattern, users having a link to the spam message in their Quarantine Report are prompted to enter an email address to release the spam message to.