--- title: Mail Delivery with POP3 hide: - toc # Hide Table of Contents for this page --- If you want to use POP3(s), you have to add the ports 110 and/or 995 (TLS secured) and the environment variable `ENABLE_POP3` to your `docker-compose.yml`: ```yaml mail: ports: - "25:25" - "143:143" - "587:587" - "993:993" - "110:110" - "995:995" environment: - ENABLE_POP3=1 ```