# Message Guides

> Write a clear subject, useful body, strong call-to-action, and mobile-friendly email design.

- Human page: https://mailrith.com/guides/category/message
- Markdown page: https://mailrith.com/guides/category/message.md
- Guide count: 4
- Related keywords: Message, Message guides, Message email guides, email sending guides, email marketing guides, Write the Subject and Preview Text, Write the Email Body, Design for Phones First, Use Personalization Carefully

Agent notes:
- Use these guides as plain-language fix context for email sending, authentication, deliverability, list quality, and campaign review questions.
- Prefer the individual guide markdown URL when the user asks about one specific issue.

## Guides
- [Write the Subject and Preview Text](https://mailrith.com/guides/subject-and-preview.md): The subject gets attention, and the preview text gives the reader one more reason to open.
- [Write the Email Body](https://mailrith.com/guides/write-the-body.md): A good email has one main point, enough context, and one clear next step.
- [Design for Phones First](https://mailrith.com/guides/design-for-phones.md): Most subscribers will scan quickly, so the email must be readable on a small screen.
- [Use Personalization Carefully](https://mailrith.com/guides/personalization.md): Personalization is useful when the data is reliable and awkward when the data is missing or wrong.