mirror of https://github.com/zulip/zulip.git
100 lines
4.0 KiB
Markdown
100 lines
4.0 KiB
Markdown
# Outgoing email
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This page documents everything you need to know about setting up
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outgoing email in a Zulip production environment. It's pretty simple
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if you already have an outgoing SMTP provider; just start reading from
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[the configuration section](#configuration).
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### Free outgoing SMTP
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If you don't have an existing outgoing SMTP provider, don't worry!
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There are several SMTP providers with free tiers, such as
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[Mailgun](https://documentation.mailgun.com/quickstart-sending.html#send-via-smtp)
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or
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[Amazon SES](http://docs.aws.amazon.com/ses/latest/DeveloperGuide/send-email-smtp.html)
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(free for sending email from EC2), and dozens of products have free
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tiers as well. Search the web for "Transactional email" and you'll
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find plenty of options to choose from. Once you've signed up, you'll
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want to find your "SMTP credentials" (which can be different from the
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credentials for the custom APIs for many email service providers
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have).
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Using a transactional email service that is designed to send email
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from servers is much easier than setting up outgoing email with an
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inbox product like Gmail. If you for whatever reason attempt to use a
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Gmail account to send outgoing email, you will need to read this
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Google support answer and configure that account as
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["less secure"](https://support.google.com/accounts/answer/6010255);
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Gmail doesn't allow servers to send outgoing email by default. Note
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also that the rate limits for Gmail are also quite low (e.g. 100 /
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day), so it's easy to get rate-limited.
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### Logging outgoing email to a file for prototyping
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If for prototyping, you don't want to bother setting up an email
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provider, you can add to `/etc/zulip/settings.py` the following:
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```
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EMAIL_BACKEND = 'django.core.mail.backends.filebased.EmailBackend'
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EMAIL_FILE_PATH = '/var/log/zulip/emails'
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```
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Outgoing emails that Zulip would have sent will just be written to
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files in `/var/log/zulip/emails/`. This is enough to get you through
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initial user registration without an SMTP provider.
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Remember to delete this configuration and restart the server if you
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later setup a real SMTP provider!
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### Configuration
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To configure outgoing SMTP, you will need to complete the following steps:
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1. Fill out the outgoing email sending configuration block in
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`/etc/zulip/settings.py`, including `EMAIL_HOST`, `EMAIL_HOST_USER`,
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`DEFAULT_FROM_EMAIL`, and `NOREPLY_EMAIL_ADDRESS`. You may also need
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to set `EMAIL_PORT` if your provider doesn't use the standard
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SMTP submission port (587).
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2. Put the SMTP password for `EMAIL_HOST_USER` in
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`/etc/zulip/zulip-secrets.conf` as `email_password = yourPassword`.
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#### Testing and troubleshooting
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You can quickly test your outgoing email configuration using:
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```
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su zulip
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/home/zulip/deployments/current/manage.py send_test_email username@example.com
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```
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If it doesn't throw an error, it probably worked; you can confirm by
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checking your email.
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It's important to test, because outgoing email often doesn't work the
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first time. Common causes of failures are:
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* Your hosting provider blocking outgoing SMTP traffic in its
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default firewall rules. Check whether `EMAIL_PORT` is blocked in your
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hosting provider's firewall.
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* Forgetting to put the password in `/etc/zulip/zulip-secrets.conf`.
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* Typos in transcribing the username or password.
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Once you have it working from the management command, remember to
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restart your Zulip server using
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`/home/zulip/deployments/current/restart-server` so that the running
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server is using the latest configuration.
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#### Advanced troubleshooting
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Zulip's email sending configuration is based on the standard Django
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[SMTP backend](https://docs.djangoproject.com/en/1.10/topics/email/#smtp-backend)
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configuration. The one thing we've changed from the defaults is
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reading `EMAIL_HOST_PASSWORD` from the `email_password` entry in the
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Zulip secrets file, so that secrets don't live in the
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`/etc/zulip/settings.py` file.
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So if you're having trouble getting your email provider working, you
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may want to search for documentation related to using your email
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provider with Django.
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