# Complaints

Email addresses of recipients who marked your messages as a spam (for ESPs that support FBL).

## Import complaint list

 - [POST /v3/{domainID}/complaints/import](https://documentation.mailgun.com/docs/inboxready/api-reference/optimize/mailgun/complaints/post-v3--domainid--complaints-import.md): Import a CSV file containing a list of addresses to add to the complaint list. The CSV file must be 25MB or under and can contain the following column headers: address, created_at. address is a valid email address (required). created_at is timestamp of complaint event in RFC2822 format (optional, default: current time)

## Lookup complaint record

 - [GET /v3/{domainID}/complaints/{address}](https://documentation.mailgun.com/docs/inboxready/api-reference/optimize/mailgun/complaints/get-v3--domainid--complaints--address-.md): Fetch a single complaint records to check if a given address is present in the list of complaints.

## Remove complaint

 - [DELETE /v3/{domainID}/complaints/{address}](https://documentation.mailgun.com/docs/inboxready/api-reference/optimize/mailgun/complaints/delete-v3--domainid--complaints--address-.md): Delivery to the deleted email address resumes until there is another complaint.

## List all complaints

 - [GET /v3/{domainID}/complaints](https://documentation.mailgun.com/docs/inboxready/api-reference/optimize/mailgun/complaints/get-v3--domainid--complaints.md): Paginate a list of complaints for the domain.

## Add complaints

 - [POST /v3/{domainID}/complaints](https://documentation.mailgun.com/docs/inboxready/api-reference/optimize/mailgun/complaints/post-v3--domainid--complaints.md): Request body is expected to be a valid JSON encoded sting containing up to 1000 complaint records or a single complaint record as application/form-data

## Clear all complaints

 - [DELETE /v3/{domainID}/complaints](https://documentation.mailgun.com/docs/inboxready/api-reference/optimize/mailgun/complaints/delete-v3--domainid--complaints.md): Clears all email addresses with complaints from the domain. Delivery to the deleted email addresses will longer be suppressed.