Bounce classification by regular expressions

Considering the fact that individual email services make up their own error messages and reasons why email can not be delivered, there is no easy way to classify them. bounce-regex-list.xml groups regular expressions into a several categories to match every error message encountered at log file in order to classify it as a soft or hard bounce and to find general reason for it's nondelivery.

After some time you can check unclassified bounces in UI http://localhost:1523/ under 'Unclassified bounce messages' or http://localhost:1523/agent-status/unknown-bounces. There is a list of clients, each might contain a list of bounced messages that were not classified, value of 'info' property is the actual error message that was not possible to classify using bounce-regex-list. You need to edit file bounce-regex-list.xml (it's location depends on application.conf settings), add or change some regular expression so that next time this kind of error will be classified. 'Refresh bounce list' command reloads bounce-regex-list.xml that you edited. Significant amount of bounces might mean that there is something wrong with your postfix settings or mx records