Hello Discourse Support/Community, I have been struggling for several days to resolve an issue with outgoing emails from my Discourse instance. I am running Discourse in a Docker container on a Spaceship VPS (Phoenix, US). My mail provider is Spacemail (SMTP). Issue: Discourse cannot send email…

Can you confirm you followed the official install ?

Yes, I followed the official Discourse installation guide for Docker. If you need, I can provide details about my setup or any adjustments I had to make for my VPS environment.

Error log details: When attempting to send emails from Discourse, I consistently receive a timeout error in the job logs: Job exception: Net::ReadTimeout net-protocol-0.2.2/lib/net/protocol.rb:229:in `rbuf_fill' net-protocol-0.2.2/lib/net/protocol.rb:199:in `readuntil' net-protocol-0.2.2/lib/net/p…

I am not familiar at all with that vps. If you are right at the beginning of your setup you can try starting over with a new server rather than continuing to hit your head against the wall. Maybe try a different provider if that still doesn’t work.

I Tried: Zap-Hosting Ultra-Host And now spaceship, where i have all of DNS Records, domain, mailbox.

Have you tried Troubleshoot email on a new Discourse install ? Sorry this has been such a struggle for you. Shouldn’t be so hard!

Yes, I did… Then I created the admin account via SSH command. After that, I saw the error: ‘Job exception: Net::ReadTimeout’

Summary of troubleshooting steps taken: Installed Discourse on a Spaceship VPS (Phoenix, US) using the official Docker install guide. Created the admin account via SSH command. Configured SMTP with Spacemail ( mail.spacemail.com , port 465, SSL, full email as username, correct password). R…

Try ports 587 or 2525 (try 587 first), do those work? 587 is the port mentioned in the install guide .

Thank you for your suggestion. My mailbox provider (Spacemail) officially supports only port 465 with SSL for SMTP. However, I have also tested port 587 with STARTTLS as part of troubleshooting (together with support), but the timeout issue still persists.

Anhaltendes SMTP-Timeout-Problem mit Spacemail auf Discourse (VPS, Docker)

Unterstützung

NateDhaliwal (Nate Dhaliwal) 21. September 2025 um 22:55 10

Versuchen Sie die Ports 587 oder 2525 (versuchen Sie zuerst 587). Funktionieren diese? 587 ist der Port, der im Installationshandbuch erwähnt wird.

Thema		Antworten	Aufrufe
Discourse with other websites, SMTP issue: End of file reached Self-hosting	7	2409	22. September 2020
Issue with creating admin account for first time Self-hosting email	10	467	18. Juli 2024
Mail system not working even thought I tested it with telnet and other platforms Self-hosting	8	1964	23. April 2022
Problems getting new Discourse install to work with Rackspace email Self-hosting	1	748	19. Dezember 2018
Cannot send mail with Discourse on new install but can from command line (on digital ocean) Self-hosting	8	2324	1. Juni 2020

Anhaltendes SMTP-Timeout-Problem mit Spacemail auf Discourse (VPS, Docker)

Verwandte Themen