My subscribers are getting a message about temporary delivery problems at their ISP
What does this message mean at the top of an email to the mailing list?
Our mailing list system had problems delivering previous message(s) to this subscriber. Most likely, the problems were due to a message being considered Spam.
After two bounce messages from their ISP, we start to throttle deliveries. We do this so the subscriber is not removed from the list for too many bounce messages. When that happens, the above message is inserted as a courtesy, to let them know about the missing messages.
If they want to read the messages their ISP blocked, they can go to the http://member.mail-list.com website listed in the email. This website contains all messages sent for the past 2 weeks.
They will need to log in with the Username and Password provided in the email.
How long will this message appear on my subscriber's emails?
This message appears until we are sure that the problem at the ISP is resolved.
Because of the bounce messages, we randomly skip some deliveries until we no longer receive bounce messages. The random percentage to skip increases as more bounces are returned.
When we put this message into their email, we do not know if they will get that particular message or not. That message may also be bounced back.
Once we are sure that messages are successfully delivered, the message is no longer inserted.
Some bounces from ISPs happen immediately, while others take up to three days. Therefore, this message can appear for as long as 3.1 days, if there is low traffic in your mailing list.