Select Contacts from the navigation bar and then select Suppressed contacts from the dropdown that appears. The next screen features five tabs:
Selecting the Bounce settings tab displays the following screen:
A soft bounce setting represents the number of times an email campaign delivery is allowed to fail due to soft bouncing, before that email address becomes suppressed.
A hard bounce is an email message that has been returned to you because the recipient's address is invalid. A hard bounce might occur because the domain name doesn't exist, the recipient is unknown, or there's some type of network problem on the recipient's end. A contact is suppressed immediately after one hard bounce, which protects your deliverability.
A soft bounce is an email message that gets as far as the recipient's mail server, but is bounced back before it reaches the recipient. One of the most common causes for a soft bounce is a full mailbox. This may happen a lot with your subscribers who use free email services like Yahoo and Hotmail because they allow for very little email storage. The default setting is 4 and this can be changed by either entering a new number or using the slider control (up to a maximum of 5). A lower number helps protect your sending reputation; a higher number helps to avoid suppressing contacts who are only bouncing temporarily.
Once you have set the number, click on the Save settings button.
Good to know
- When a contact either resubscribes, or when they open or click on a campaign, their soft bounce count gets reset to 0.
- Suppressions expire after a year for contacts originally suppressed due to reaching the soft bounce threshold. They won't be automatically added back into your account but they can be uploaded again.