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Deleting a subscriber without sending the automatic re-subscribe mail
When a subscriber unsubscribes from a Mailing List using a normal email or using an unsubscribe form, they will receive an email enabling them to resubscribe should they wish to.
In order for the deletion to be "silent", a special command must be sent.
Actions to performRedirect an email from the address email@example.com
The subject must be "QUIET DELETE listname firstname.lastname@example.org" with the quotation marks
Replace "listname" with the name of the list concerned
Send the empty email to the address email@example.com