Update docs/configuring-playbook-email.md: fix default email sender specified by exim_relay_sender_address

exim_relay_sender_address consists of exim_relay_hostname, which by default is equal to matrix_server_fqn_matrix, whose default value is matrix.example.com

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
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Suguru Hirahara 2024-10-18 16:14:19 +09:00
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@ -5,7 +5,7 @@ By default, this playbook sets up an [Exim](https://www.exim.org/) email server
The email server would attempt to deliver emails directly to their final destination. The email server would attempt to deliver emails directly to their final destination.
This may or may not work, depending on your domain configuration (SPF settings, etc.) This may or may not work, depending on your domain configuration (SPF settings, etc.)
By default, emails are sent from `matrix@example.com` (as specified by the `exim_relay_sender_address` playbook variable). By default, emails are sent from `matrix@matrix.example.com`, as specified by the `exim_relay_sender_address` playbook variable.
**Note**: If you are using a Google Cloud instance, [port 25 is always blocked](https://cloud.google.com/compute/docs/tutorials/sending-mail/), so you need to relay email through another SMTP server as described below. **Note**: If you are using a Google Cloud instance, [port 25 is always blocked](https://cloud.google.com/compute/docs/tutorials/sending-mail/), so you need to relay email through another SMTP server as described below.