Bounces and complaints

A bounce means an address can’t receive mail. A complaint means someone marked your email as spam. Mailbox providers watch how often both happen, and senders who keep emailing bad addresses land in spam. So Rowsend stops emailing those contacts.

What Rowsend does

Event	What happens
Hard bounce (the address doesn’t exist)	The contact is unsubscribed from everything
Spam complaint	The contact is unsubscribed from everything
Soft bounce (mailbox full, server busy)	Noted on the send. The contact stays subscribed.

Contacts unsubscribed this way show Bounced or Complained on the Contacts page. A send already in progress skips them from that point on. You can resubscribe a contact by hand if you know the address works again.

How each provider reports them

Provider	Setup	Works with the companion on this computer
Amazon SES	Click Set up bounce tracking once	Yes
Postmark	None	Yes
Mailgun	None	Yes
SMTP	Nothing on Rowsend Cloud. On your own server, a bounce domain.	No

Rowsend checks for new events while a campaign sends and for 24 hours after, so late bounces still count.