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JM Jooosi Mail

Postal

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Overview
Contents
On this page
  1. Before you begin
  2. Supported transport and settings
  3. Create the connection
  4. Verify delivery
  5. Webhooks
  6. Troubleshooting

Postal is a self-hosted mail server. Jooosi Mail connects to its API with a server host and API key, and can use a non-default port when your Postal installation requires one.

Before you begin#

  • You need access to the provider account and the Jooosi Mail Connections screen. If the provider requires sender or domain verification, complete it in the provider account first.
  • Copy credentials directly from the provider’s own console into the matching Jooosi Mail field. Keep secret values private; never include them in screenshots or support messages.

Consult provider sending documentation for any provider-side setup requirements.

Supported transport and settings#

  • postal+api (default and only supported scheme): Required: API key (secret) and Postal host. Optional: port number.

Create the connection#

  1. In WordPress admin, open Jooosi Mail → Connections and choose New connection.
  2. Enter a descriptive Connection name and select Postal in Profile.
  3. Choose the transport scheme you want to use. Enter its required fields listed above and leave fields for other schemes empty.
  4. Review the sender, routing, and advanced settings for this connection.
  5. Choose Create connection to save it.

The profile does not offer SMTP for Postal. Enter the host and optional port for the Postal server you administer; no public cloud endpoint is assumed.

For the shared form workflow, see Connect a provider.

Verify delivery#

Use Send a test email with a recipient you control; it sends a real message through this connection. Check its status and the email log for the provider response.

Webhooks#

This profile does not declare a provider webhook adapter. Track delivery outcomes in the Jooosi Mail email logs. See the shared email logs guide.

Troubleshooting#

  • For missing-field validation, confirm the scheme and fill all required settings listed above.
  • After a failed test, re-copy the matching credential and inspect the connection status and email log.
  • If the connection cannot be built, check that both API key and host are populated and that the host is the Postal server host. If your server listens on a non-default port, enter its port as a number; leave it blank when not needed.