SMTP settings for local self-hosted email server

[benstaf]

Hi, I want to use a local self-hosted email server as a mail delivery platform, hosted on the same server as Listmonk (for example, a VPS server with Postal+Listmonk), instead of using an external SMTP relay such as Sendgrid or AWS SES.

How should I configure the SMTP settings in this case?

[knadh]

• If it's on the same VPS, you don't need TLS.
• Host: 127.0.0.1. Port should ideally be 25 (or whatever else Postal gives you).
• Credentials, again, should be whatever you create in Postal.

Rest of the fields can be left as-is.

[benstaf]

It doesn't work, I am getting the error: dial tcp 127.0.0.1:25: connect: connection refused

If I connect to Postal from an external Listmonk server, it works normally

I am investigating this issue (maybe Docker Network)

[benstaf]

172.17.0.1 works for me. I found that on Stackoverflow