Let’s deconstruct the example SMTPProvider Application generated
Return-Path (bounce address) below:
It consists of eight parts:
return– The localpart of the bounce mailbox that SMTPProvider Application used.
a– The prefix that SMTPProvider Application prepends to ListIDs. This prefix is used to distinguish SMTPProvider Application generated messages from messages that were generated from other sources. This field is set equal to
31– This is the ListID that the message was sent to.
271– Stat ID – This is an internal value that we use to determine where to put the stats for this bounce.
272– Stat Slice ID – This is an internal value that we use to determine where to put the stats for this bounce.
recipient=customer.com– The VERP encoded email address of the subscriber that this message was sent to. This example
Return-Pathis from a message that was sent firstname.lastname@example.org.
4– Indicates that this is
Return-Pathwas generated by SMTPProvider Application.
@example.com– The domain name portion of the bounce mailbox that SMTPProvider Application used.
Web Interface Lookups
Once you’ve identified the subscriber ID and ListID, you can lookup information about the mailing list or subscriber.
To lookup information on the mailing list, go to the following URL:
The following replacements will need to be made:
HOSTNAMEwith your SMTPProvider Application server’s hostname.
LISTIDwith the ListID.