# Email receive issue

**URL:** https://meta.discourse.org/t/email-receive-issue/374615
**Category:** Bug
**Tags:** mail-receiver, fixed
**Created:** [July 17, 2025, 9:59am UTC](https://meta.discourse.org/t/email-receive-issue/374615 "2025-07-17T09:59:15Z")
**Posts on this page:** 1
**Showing post:** 15

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### Author: ![supermathie](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/supermathie/32/507518_2.png) [@supermathie](https://meta.discourse.org/u/supermathie)
#### Post date: [July 17, 2025, 3:40pm UTC](https://meta.discourse.org/t/email-receive-issue/374615/15 "2025-07-17T15:40:20Z")

</div>

> [@Ethsim2](#):
>
> mail-receiver sees the IP as unknown, so bounces it back

I don’t believe this is correct. It’s a warning, not an error.

This screenshot (please make this text) indicates the address `ppyem30@discourse.domain.com` is not accepted - that appears to be the reason for the failure.

 ![image](https://global.discourse-cdn.com/meta/original/4X/d/f/d/dfd93246a76f1dd35061b8c01af05a799cda091d.jpeg)

I’d look more into the `using backwards-compatible default setting…` line, that seems to be hinting towards the reason.

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