What Happens to Bad Mail Addresses?
If Aurea List Manager is unable to send mail to an address after all its retry attempts it counts as a bounce for that email address. Only one bounce will be counted against a member per day.
Once the number reaches the value set in Utilities> List Settings > Automatic Maintenance, then that email address is put on hold and regular mailings will not be sent to them until they are unheld.
Depending on how your list is set up, held users may or may not be deleted after a specified length of time. You also have the option of periodically notifying users who are on hold to give them the opportunity to unhold themselves.
Usually email addresses are not permanently bad. For example, email inbox sometimes exceed their mailbox size and cannot receive mail. But, when the user clears their mailbox, they are able to receive mail again.
This is the reason why Aurea List Manager may take several days of transient failures before holding email addresses since many mail problems are temporary. But transient delivery problems may also indicate a permanent delivery problem, as in the case of an abandoned email account which is permanently full.
For detailed information on how to configure the handling of error mail, see Utilities: List Settings: Automatic Maintenance: Error Mail.
Failed send attempts are recorded in the lyrCompletedRecips table: a total of the number of
bounces for an address is no longer contained in the members_ table.