You got **custom MAIL FROM MX/SPF is incomplete**. Lumail sends with a custom MAIL FROM of `ses.your-domain.com`. That hostname needs its own MX and SPF. Without them, bounce handling and SPF alignment break.

## What to add

Copy the MAIL FROM rows from **Domains → the domain**. They look like this:

| Type | Host | Value |
| --- | --- | --- |
| MX | `ses.your-domain.com` | `feedback-smtp.REGION.amazonses.com` (priority `10`) |
| TXT | `ses.your-domain.com` | `v=spf1 include:amazonses.com ~all` |

The MX target is region-specific. Use the value on the domain page, not a guess.

## Checklist

- Host is `ses` **relative to the sending domain** (so `ses.hey.melvynx.com` if you send from `hey.melvynx.com`).
- MX priority is `10`.
- SPF is a TXT on the same `ses` hostname, not only on the apex.
- No extra MX on `ses.your-domain.com` that steals the name.

Then verify on the domain page.

## Related

- [How to verify a sending domain](/docs/deliverability/how-to-verify-sending-domain)
- [Email Domains](/docs/domains/email-domains)