> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mailofly.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Why use Topics?

> Give recipients granular control over the types of emails they receive.

Topics allow your recipients to manage their subscription preferences instead of opting out of all communications entirely.

## The Problem with All-or-Nothing Unsubscribes

Without topics or categories, when a user clicks "Unsubscribe" on a weekly newsletter or product update, they may be completely suppressed from your mailing list. This means they might also miss:

* Important product announcements
* Feature launches
* Billing reminders or non-critical account updates

## How Topics Work

Topics group your communications into distinct subscription channels:

* **Product Updates**: New releases, monthly highlights, and changelogs.
* **Marketing & Promotions**: Special offers, discounts, and webinar invitations.
* **Educational Content**: Tips, tutorials, and best practices.

### Granular Unsubscribe Links

When you assign an email to a Topic:

1. The unsubscribe link directs users to a **Preference Center**.
2. Users can choose to opt out of just that topic while remaining subscribed to others.
3. Your overall unsubscribe rate drops and deliverability improves.

## Best Practices

* Always keep transactional emails (password resets, OTPs, security notices) exempt from topics.
* Name topics clearly so users immediately understand what they are opting in or out of.
* Link your preference center in the footer of all marketing broadcasts.


## Related topics

- [Introduction](/templates/introduction.md)
- [Topics](/audience/topics.md)
- [Return Path](/domains/return-path.md)
- [What sending feature to use?](/guides/sending/what-sending-feature-to-use.md)