How does Mailblast handle Bounces?

Mailblast automatically processes bounce and complaint notifications from Amazon SES and removes hard-bounced addresses and spam complaints from your list so future campaigns skip them.

You can see the full breakdown of bounces and complaints for any individual send on the campaign's report page.

Soft bounces

Soft-bounced recipients stay on your list and keep receiving campaigns - a soft bounce usually clears itself up (a temporarily full inbox, a server hiccup). Addresses that keep soft-bouncing are automatically retired so they stop counting against your delivery rate.

For more on bounce handling and deliverability best practices, see the Amazon SES documentation.