Go to the My Account section and open the Settings submenu
Select Preferences. The preferences dialog opens up.
To set preferences for bounces: click the Bounce policy tab. You will be able to set preferences for hard bounces and soft bounces.
Figure: Default bounce policy settings. If an address bounces a message 3 times, this contact will be added to the unsubscribers list. In case of 3 soft bounces, no action happens. You define first the action that should happen to the addresses that bounce.
You have the choice between:
no action: no action will happen on the contacts that bounced.
unsubscribing: the contacts that bounced are added to the unsubscribers list. The will never receive any e-mail from your account anymore.
removing: the contacts that bounced are deleted from your contacts database.
Then you define the number of bounces after which the contact should be removed or unsubscribed. If you choose 3 bounces, e.g. the contact will only be unsubscribed/removed after the third message that bounces at his address.
Finally, you can still specify whether all bounces or only consecutive bounces should be counted. If you choose only consecutive bounces, the bounce counter will be reset to 0 when a message arrives succesfully at a contact that previously bounced.
Do this for both hard bounces and soft bounces. Remember that soft bounces most of the time are temporary errors, that could be solved at any moment.