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# Setting up Postmoogle (optional)
**Note**: email bridging can also happen via the [email2matrix ](configuring-playbook-email2matrix.md ) bridge supported by the playbook.
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The playbook can install and configure [Postmoogle ](https://github.com/etkecc/postmoogle ) for you.
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It's a bot/bridge you can use to forward emails to Matrix rooms.
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Postmoogle runs an SMTP email server and allows you to assign mailbox addresses to Matrix rooms.
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See the project's [documentation ](https://github.com/etkecc/postmoogle ) to learn what it does and why it might be useful to you.
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## Prerequisites
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### Networking
Open the following ports on your server to be able to receive incoming emails:
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- `25/tcp` : SMTP
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- `587/tcp` : Submission (TLS-encrypted SMTP)
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If you don't open these ports, you will still be able to send emails, but not receive any.
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These port numbers are configurable via the `matrix_bot_postmoogle_smtp_host_bind_port` and `matrix_bot_postmoogle_submission_host_bind_port` variables, but other email servers will try to deliver on these default (standard) ports, so changing them is of little use.
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### Adjusting the playbook configuration
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Add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
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```yaml
matrix_bot_postmoogle_enabled: true
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# Uncomment and adjust this part if you'd like to use a username different than the default
# matrix_bot_postmoogle_login: postmoogle
# Generate a strong password here. Consider generating it with `pwgen -s 64 1`
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matrix_bot_postmoogle_password: PASSWORD_FOR_THE_BOT
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# Uncomment to add one or more admins to this bridge:
#
# matrix_bot_postmoogle_admins:
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# - '@yourAdminAccount:{{ matrix_domain }}'
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#
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# .. unless you've made yourself an admin of all bots/bridges like this:
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#
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# matrix_admin: '@yourAdminAccount:{{ matrix_domain }}'
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```
### DNS
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You will also need to add several DNS records so that Postmoogle can send emails.
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See [Configuring DNS ](configuring-dns.md ).
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## Installing
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After configuring the playbook, run the [installation ](installing.md ) command:
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```sh
ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,ensure-matrix-users-created,start
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```
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**Notes**:
- the `ensure-matrix-users-created` playbook tag makes the playbook automatically create the bot's user account
- if you change the bot password (`matrix_bot_postmoogle_password` in your `vars.yml` file) subsequently, the bot user's credentials on the homeserver won't be updated automatically. If you'd like to change the bot user's password, use a tool like [synapse-admin ](configuring-playbook-synapse-admin.md ) to change it, and then update `matrix_bot_postmoogle_password` to let the bot know its new password
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## Usage
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To use the bot, invite the `@postmoogle:example.com` bot user into a room you want to use as a mailbox.
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Then send `!pm mailbox NAME` to expose this Matrix room as an inbox with the email address `NAME@matrix.domain` . Emails sent to that email address will be forwarded to the room.
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Send `!pm help` to the room to see the bot's help menu for additional commands.
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You can also refer to the upstream [documentation ](https://github.com/etkecc/postmoogle ).
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### Debug/Logs
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As with all other services, you can find their logs in [systemd-journald ](https://www.freedesktop.org/software/systemd/man/systemd-journald.service.html ) by running something like `journalctl -fu matrix-bot-postmoogle`
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The default logging level for this bridge is `INFO` , but you can increase it to `DEBUG` with the following additional configuration:
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```yaml
matrix_bot_postmoogle_loglevel: 'DEBUG'
```