View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0019462||phpList 3 application||Bounce Management||public||19-10-18 11:44||19-10-18 11:44|
|Priority||normal||Severity||minor||Reproducibility||have not tried|
|Summary||0019462: Check whether regular expressions are run in 'single line' or 'multi-line' mode when enforcing bounce rules|
|Description||When phpList receives bounced messages in response to messages sent for a campaign (e.g. when the email address is invalid on the remote mail server), then custom bounce rules can be applied to handle those bounce messages in customised ways. For example a custom bounce rule can look for the text 'invalid email address' and then instantly add subscribers which have caused such bounce messages to be blacklisted within phpList.|
This bounce rule system relies on regular expressions to match the user-specified bounce messages text to an action (like blacklisting).
However it is unclear whether the regular expression (regex) that is specified by the user, is applied by phpList code to a single line at a time, or to multiple lines of text. The answer to this question will determine what format of regex will be necessary to correctly work in certain cases (e.g. for long, multi-line bounce messages).
Check this, report the answer, and include a file and line number reference or GitHub link to allow for follow up work (potentially making the regex mutli-line mode in future if it is currently single-line).
First reported here: https://discuss.phplist.org/t/back-to-understanding-bounce-rules/4246