Sending messages not working

[justinjakull]

Hi, everybody
So, I've setup everything according to the instuctions on the web, yet none of my test mails get send. Recieving messages works fine. In the logs of the SMTP-Server there is no evidence of a failed login or anything similar.

Postal itself shows "excecution expired" for technical details. Every Message is a Soft Fail with message: "No SMTP servers were available for gmail.com. Tried gmail-smtp-in.l.google.com, alt1.gmail-smtp-in.l.google.com, alt2.gmail-smtp-in.l.google.com, alt3.gmail-smtp-in.l.google.com, and alt4.gmail-smtp-in.l.google.com."
The Postal worker logs: Cannot connect to 185.230.212.166:25 (mx2.zoho.eu) (Net::OpenTimeout: execution expired) log_id=DIDWRCGB component=worker thread=work1 original_queued_message=10 queued_message=10

Here's my postal.yml

version: 2

postal:
  web_hostname: postal.redacted.de
  web_protocol: https
  smtp_hostname: postal.redacted.de

main_db:
  host: 127.0.0.1
  username: root
  password: redacted
  database: postal

message_db:
  host: 127.0.0.1
  username: root
  password: redacted
  prefix: postal

smtp_server:
  default_bind_address: "::"
  port: 25

dns:
  # Specify the DNS records that you have configured. Refer to the documentation at
  # https://github.com/atech/postal/wiki/Domains-&-DNS-Configuration for further
  # information about these.
  mx_records:
    - mx.postal.redacted.de
  spf_include: spf.postal.redacted.de
  return_path_domain: rp.postal.redacted.de
  route_domain: routes.postal.redacted.de
  track_domain: track.postal.redacted.de

smtp:
  # Specify an SMTP server that can be used to send messages from the Postal management
  # system to users. You can configure this to use a Postal mail server once the
  # your installation has been set up.
  host: 127.0.0.1
  port: 2525
  username: topogo/system
  password: redacted
  from_name: Postal
  from_address: postal.topogo.de

rails:
  # This is generated automatically by the config initialization. It should be a random
  # string unique to your installation.
  secret_key: redacted 

[willpower232]

It sounds like either you are blocking port 25 outbound or your server provider is blocking port 25 outbound. It is possible gmail is blocking you as well but you should ask your server provider whether they support you sending emails and whether you can get permission to do so.

[justinjakull]

Thanks, I've done some research an it turns out the VPS does block port 25