Max sieve match iterations MTA option

Sieve filter limit MTA options:  (0 &#x3c; integer &#x3c;= 2147483647)
The  MTA  option specifies the maximum number of iterations the internal code handling  the :matches construct will attempt.

The default is 1,000,000,000; allowed values are integers greater than 0 and less than or equal to 2147483647.

If a :matches operation attempts to perform more than the allowed number of iterations, Sieve filtering will be aborted (the message being processed will be delivered normally though without Sieve filtering being applied), and the MTA will also generate a notification message to the Sieve owner -- the postmaster for system Sieve filters  (  and  channel filters), as well as for Sieve filters specified on groups or lists in the aliases file or via alias options,  or the user whose Sieve has the error for a user&#x27;s own Sieve filter. The notification message will be constructed using the  file,  and will include as reason/status text " ".

See also:
 * Sieve filter limit MTA options
 * systemfilter MTA Option
 * destinationfilter Option
 * Alias options