Hi all, I’m running a WordPress site on Ubuntu 16.04 Server. Before using Digital Ocean Firewall feature. My WordPress site was sending outgoing emails without any problem but after enabling I’m getting following error in my mail server log:
server postfix/smtp: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c03::1b]:25: Network is unreachable
Currently I’m using following rules in the firewall:
Inbound Rules: SSH TCP 22 DNS TCP TCP 53 HTTP TCP 80 HTTPS TCP 443 DNS UDP UDP 53
Outbound Rules: DNS TCP TCP 53 HTTP TCP 80 HTTPS TCP 443 DNS UDP UDP 53
Please help me which port rule I’ll need to add in the firewall to fix the issue, Thanks!
This textbox defaults to using Markdown to format your answer.
You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.
Click below to sign up and get $200 of credit to try our products over 60 days!