Direct replies and @mentions trigger an in-app notification within seconds and, if enabled, an email within 15 minutes; general thread activity (someone else replying further down) is bundled into an optional once-daily digest instead of individual alerts. You can mute any single thread permanently, or turn off email notifications while keeping in-app ones, from the bell icon or Preference Centre.
At a glance
| Event | In-app | Email (if enabled) |
|---|---|---|
| Direct reply to your comment | Immediate | Within 15 minutes |
| @mention | Immediate | Within 15 minutes |
| Someone else replies in a thread you're in | Daily digest only | Daily digest only |
| Your comment gets 10+ upvotes | Single summary notification | Not emailed |
Two tiers of notification
Direct engagement — a reply to you or an @mention — is treated as high-priority and delivered immediately. Ambient thread activity, where a conversation you're part of moves on without directly involving you, is deliberately downgraded to a digest so your inbox and notification bell aren't flooded by busy threads.
Controls you have
- Mute a specific thread permanently — you'll stop getting any notification from it, including direct replies.
- Turn off email for comment notifications while keeping in-app alerts (or the reverse).
- Switch the daily digest to weekly, or turn it off entirely, from the Preference Centre.
- Block a specific member, which also silences their replies and mentions without a notification trail.
Accessibility and delivery
In-app notifications are announced to screen readers and keyboard-navigable per WCAG guidance, and never rely on color alone to indicate an unread state — an unread badge always carries a number, not just a color change. Email notifications use plain-language subject lines (no bare "You have a notification") so they're scannable in a crowded inbox.
Frequency safeguards
To prevent notification fatigue during viral threads, no more than 5 individual reply/mention emails per hour are sent to one account; anything beyond that rolls into the next digest automatically, with a note that some notifications were bundled.
Muting a thread is one-way from your side — the other participants aren't notified, and you can unmute at any time from your notification settings.
Frequently asked questions
Will I be emailed every time someone replies in a thread I commented on?
How do I stop notifications from one specific thread?
Can I get in-app alerts without email?
What happens during a very active thread?
Are notifications accessible with a screen reader?
Sources & further reading
- W3C — Web Content Accessibility Guidelines (WCAG)
- Nielsen Norman Group — 10 Usability Heuristics for User Interface Design
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