The local blacklist includes emails of users who have complained about the mailing, i.e. marked it as spam in the mail interface. Sending messages to such users may cause serious problems with deliverability and sender's reputation, so further sending of emails to the addresses of complainers is automatically restricted. At the same time, push notifications, if the user is subscribed to them, will be shown to him as before.

You can check if an email address is on the local blacklist using the search function.

If you are sure that the address has been blacklisted accidentally (for example, a person accidentally clicked on the “This is spam” button and wrote to you asking to be included in your mailing list), you can remove the email from the blacklist manually.

You can add an email to the blacklist manually. For example, if a user has asked you directly not to send them any more mailings and you are not sure that they will not be added to Contacts again. When adding an email to the blacklist manually, you can specify a description of the reason in the corresponding field.

In the blacklist list you can see the reason why the email was added (manually, delivery errors, complaint), as well as a description of this reason (if the contact was added manually).

A user is globally blacklisted if he/she returns a hard delivery error. The global blacklist applies to all platform accounts, so only administrators have access to it. A contact gets into the Global Blacklist immediately after he returns a hard delivery error, but he is unsubscribed from mailing groups only if you try to send him a message again (in this case no sending as such occurs, as the contact is already in the Global Blacklist, and the check for this occurs before sending the message, that is, it does not affect the percentage of hard errors).