Troubleshoot missing emails sent by Crisp, including operator notifications, login emails, invitations, and verification messages.

This article covers emails Crisp sends to you. If customers are sending emails to your Crisp Inbox and those emails are not received, use the inbound email troubleshooting guide instead.

Check spam and mailbox filtering

Email providers can incorrectly classify Crisp emails as spam, especially when many notifications are sent over time.

What to do first:

• Spam folder → check whether Crisp emails landed there
• Not spam → mark Crisp emails as safe or not spam so your provider learns the correction
• Mailbox rules → check filters, forwarding rules, aliases, and blocked senders
• Corporate gateway → ask your email administrator whether Crisp emails were quarantined

Check your Crisp notification settings

If the missing emails are unread message notifications, make sure email notifications are enabled in your own account settings.

To check email notifications:

1. Go to Crisp
2. Open Settings → Account → Notifications
3. Make sure Disable all notifications is turned off
4. Make sure email notifications for unread messages are enabled

Email notifications are sent according to Crisp notification rules and delays. Read How do email notifications work? for the full behavior.

Check conversation state and assignment

Crisp does not send an email notification for a pending message once at least one operator has already read it. If your team is testing notifications, make sure nobody opens the conversation before the email notification delay has passed.

If the conversation is assigned to another agent, that agent may be prioritized for notifications instead of you.

Check whether your address unsubscribed

At some point, you may have clicked an unsubscribe link in an email sent by Crisp. If so, Crisp may stop sending some emails to that contact address.

To re-subscribe your own contact profile:

1. Open Crisp
2. Go to Contacts
3. Search for your own email address
4. Open the matching contact profile, or create it if it does not exist
5. Look for an orange unsubscribe warning bar
6. Click Re-subscribe if the option is shown

Check blocked recipient domains

Crisp may ignore email delivery to domains that generate too much abuse or cannot reliably receive emails.

Known blocked domains:

• @facebook.com → Facebook email servers no longer reliably accept those emails
• @qq.com → number-based QQ addresses are frequently abused for bulk sending patterns

If your account email uses one of these domains, use another email provider or domain for your Crisp account.

Check login, invitation, or verification emails

If verification, login confirmation, or invitation emails still do not arrive, the issue may come from your email provider, DNS setup, or forwarding chain.

Common causes:

• Recipient DNS issue → the recipient domain may have invalid or unstable records
• Provider filtering → the mailbox provider may block or delay Crisp emails
• Forwarding issue → forwarding can break delivery when the intermediate provider does not process the email correctly

A possible workaround for forwarding issues is to add an intermediate mailbox before Crisp or use a mailbox that receives Crisp emails directly.

If emails still do not arrive

If none of the checks above explains the issue, contact Crisp support with the affected email address, the type of email you expected, and the approximate time you requested it.

Updated on: 03/05/2026