This guide explains how to configure and manage activity summary emails in Discourse, including user and admin options, customization, and troubleshooting.
Required user level: Administrator
Activity summary emails (formerly known as digest emails) are automated messages sent to forum members who haven’t visited in a specific period. These emails contain a collection of popular content since the user’s last visit, aiming to re-engage inactive members.
Understanding activity summary emails
Activity summary emails include:
- Activity statistics to emphasize engagement levels
- A list of popular topics
- A selection of popular posts
- Links to topics that are “New for you”
Here’s an example of what an activity summary email looks like:
The system sends these emails only when a member hasn’t visited the forum or received an email from the forum for a minimum period.
Configuring user options
Users can customize their activity summary email preferences:
- Go to user preferences
- Navigate to the “Emails” tab
- Adjust the “Activity Summary” frequency
Available frequency options are:
- Never
- Every 30 minutes
- Every hour
- Daily
- Weekly
- Every month
- Every six months
The system won’t send activity summaries to silenced or suspended members.
Setting up admin options
Default user settings
To configure default settings for new users:
- Go to Admin / Settings
- Search for “digest”
- Adjust the following settings:
default email digest frequencydefault include tl0 in digests
Here’s what these settings look like in the admin panel:
Site settings
To customize activity summary emails:
- Go to Admin / Settings
- Search for “digest”
- Modify the following settings as needed:
digest logo urldigest min excerpt lengthdigest topicsdigest postsdigest other topicssuppress digest email after daysdigest suppress categoriesshow topic featured link in digestdisable digest emails
Customizing email appearance
To customize the email’s appearance:
- Go to Admin / Settings
- Adjust the following settings:
email accent bg coloremail accent fg color
For more advanced customization, refer to the guide on customizing email templates.
Adding custom content
To add custom text to activity summary emails:
- Go to Admin / Customize / Text Content
- Search for
user_notifications.digest.custom - Edit the desired customization keys
Understanding the list of popular topics
Popular topics for digests are extracted from /top topics with certain rules:
- individual user permissions to view that topic
- topics from private categories the user does not have access to will not be sent
- topic notification level
- the topic shouldn’t be muted for that user
- user who created that topic must have trust level greater than 0
- this default can be overridden (see below)
- topic must be created after the user was last emailed
- topic should not be from a muted category
- topic should not be closed
- topic should not be archived
Testing activity summary emails
To preview an activity summary email:
- Go to Admin / Emails
- Click on “Preview Summary”
- Set the
Last Seen Userdate - Enter a
usernameto use for the summary email. - Choose to view on-site or send to an email address
Here’s what the preview option looks like in the admin panel:
Note that for the summary email to populate, it will need to contain at least some activity since the
last seen userdate, so you may need to set this date back several weeks if your site does not have a lot of activity.
Troubleshooting
A user might not receive activity summary emails if:
- They have been active on the site recently
- They have unsubscribed from activity summary emails
- A summary has been sent recently
- Their email has been bouncing
- They’re inactive, suspended, or staged
- They were created via
sync_ssoand have never visited the forum
Checking email sending dates
To check when an email was last sent to a user:
- Check the
last_emailed_atcolumn in theuserstable - Check the
digest_attempted_atcolumn in theuser_statstable
Frequestly asked questions
Is there a place to see statistics or a report of the amount of e-mails sent?
You can see the list of sent emails from your site’s Admin / Emails / Sent page. You can see the total number of emails sent per day with the Emails Sent dashboard report (found by clicking the Reports link from your admin dashboard.)
For a detailed report of emails sent per type of email, you can query the email_logs table with the Data Explorer plugin.
For self hosted sites, you can also usually see reports at your transactional mail provider, which will also include delivery status, bounces, etc.
What are the technical requirements and the costs associated with sending email to forum members?
For self hosted sites, an account with a transactional email provider like Sendgrid needed. Take a look at the email provider recommendations.
Email delivery is included with all of our hosting plans. If you go with our hosting, everything to do with sending and receiving emails on your Discourse site is configured for you.
Additional resources
- Managing Activity Summary email subscriptions
- Customizing the Discourse outer email template
- Adding custom content to summary emails
Last edited by @SaraDev 2025-06-11T20:46:13Z
Last checked by @hugh 2024-08-02T04:11:44Z
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