Feature: Local Address Extension

Local address extension allows you to extend your email address with a string that does not need to be known by docker-mailserver. If you add a - (dash) to your email address you can insert any combination of words or numbers to create unique addresses. You are even able to create Sieve rules with these addresses.

This feature is also referred to as plus-addressing (due to common use of the + sign to separate the address parts) or subaddressing.