From ecff0f4a67fd6f627005d04507db722a82610e19 Mon Sep 17 00:00:00 2001 From: Eduardo Beltrame Date: Sun, 18 Aug 2019 19:55:54 -0700 Subject: [PATCH] Describe setting up SMTP server with Sendgrid --- docs/configuring-playbook-email.md | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/docs/configuring-playbook-email.md b/docs/configuring-playbook-email.md index 2da52ddd..0933fb54 100644 --- a/docs/configuring-playbook-email.md +++ b/docs/configuring-playbook-email.md @@ -7,6 +7,8 @@ This may or may not work, depending on your domain configuration (SPF settings, By default, emails are sent from `matrix@` (as specified by the `matrix_mailer_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. + ## Firewall settings @@ -31,6 +33,23 @@ matrix_mailer_relay_auth_password: "some-password" **Note**: only the secure submission protocol (using `STARTTLS`, usually on port `587`) is supported. **SMTPS** (encrypted SMTP, usually on port `465`) **is not supported**. +### Configuations for sending emails using Sendgrid +An easy and free STMP service to set up is [Sendgrid](https://sendgrid.com/), the free tier allows for up to 100 emails per day to be sent. In the settings below you can provide any email for `matrix_mailer_sender_address`. + +The only other thing you need to change is the `matrix_mailer_relay_auth_password`, which you can generate at https://app.sendgrid.com/settings/api_keys. The API key password looks something like `SG.955oW1mLSfwds7i9Yd6IA5Q.q8GTaB8q9kGDzasegdG6u95fQ-6zkdwrPP8bOeuI`. + +Note that the `matrix_mailer_relay_auth_username` is literally the string `apikey`, it's always the same for Sendgrid. + +```yaml +matrix_mailer_sender_address: "arbitrary@email.com" +matrix_mailer_relay_use: true +matrix_mailer_relay_host_name: "smtp.sendgrid.net" +matrix_mailer_relay_host_port: 587 +matrix_mailer_relay_auth: true +matrix_mailer_relay_auth_username: "apikey" +matrix_mailer_relay_auth_password: "" +``` + ## Troubleshooting If you're having trouble with email not being delivered, it may be useful to inspect the mailer logs: `journalctl -f -u matrix-mailer`.