## MailOptions.replyTo property [​](/content/docs/sdk/core.mailoptions.replyto#mailoptionsreplyto-property/index.html)

An e-mail address that will appear on the Reply-To: field

**Signature:**

```typescript
readonly replyTo?: string | MailAddress;
```  
- [MailOptions.replyTo property](/content/docs/sdk/core.mailoptions.replyto#mailoptionsreplyto-property/index.html)