# 邮件送达率指南 (2026)

*SPF、DKIM、DMARC 与批量发送规则。*

By Tomas Reichert (Deliverability lead)

送达率不会配合你的路线图。认证错误或失控自动化会迅速损害发信声誉。

## 认证每个发信域

发布 SPF、DKIM、DMARC。Gmail 与 Yahoo 对批量发送者要求更严格。

## FAQ

### Do AI-generated emails hurt deliverability?

We score auth, engagement, and complaints. Model-assisted copy is not a spam signal by itself.

### Which ESPs make authentication easy?

[Brew](https://docs.brew.new/get-started/verify-your-sending-domain), [Resend](https://resend.com), [SendGrid](https://sendgrid.com), [Klaviyo](https://www.klaviyo.com). See each review.

## Sources

- [Gmail sender guidelines](https://support.google.com/a/answer/81126)
- [Yahoo sender hub](https://senders.yahooinc.com)
- [dmarc.org](https://dmarc.org)
- [Brew verify domain](https://docs.brew.new/get-started/verify-your-sending-domain)


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[View on Email Tool Review](https://emailtoolreview.com/guides/deliverability)