## MailAttachment.filename property [​](/content/docs/sdk/core.mailattachment.filename#mailattachmentfilename-property "Direct link to MailAttachment.filename property"/index.html)

filename to be reported as the name of the attached file, use of unicode is allowed. If you do not want to use a filename, set this value as false, otherwise a filename is generated automatically

**Signature:**

```typescript
readonly filename?: string | false;
```

- [MailAttachment.filename property](/content/docs/sdk/core.mailattachment.filename#mailattachmentfilename-property/index.html)