> The SES team knows about the spam cannibal listings and is in contact with them, they say it's unlikely your open rate drop from 25% to 0.15% is caused by the SC listing.
SpamCannibal can cause the originating mail server to get caught in a 'tarpit' by slowing it down. Given the AWS CUSTOMER was sending a significant amount of measurable email to a given destination server (which was running SpamCannibal) it's possible the sending servers are being slowed down. In that particular scenario, that would affect open rate over a short period of time.
SpamCannibal can cause the originating mail server to get caught in a 'tarpit' by slowing it down. Given the AWS CUSTOMER was sending a significant amount of measurable email to a given destination server (which was running SpamCannibal) it's possible the sending servers are being slowed down. In that particular scenario, that would affect open rate over a short period of time.