# Email Not Working – Wrong MX Record? Check SPF & Mailbox

Emails not arriving or sending? Fix MX record, SPF, DKIM, mailbox assignment and common errors.

**Quick answer:** If email with your domain doesn't work, first check the **MX record**, then if the mailbox exists, then **SPF/DKIM**. 80% of cases are wrong MX or missing mailbox in panel.

**If you landed here:** You created a mailbox or changed MX but mail doesn't arrive, bounces or lands in spam.

## Check MX record

`dig +short yourdomain.com MX`
## Error → fix

ProblemCauseFix

550 User unknownMailbox doesn't existCreate mailbox in panel → [Set up email](/en/webspace/mail)

Mail not arrivingMissing/wrong MXSet MX to provider, wait 15–60 min

Everything in spamMissing SPF/DKIM[SPF, DKIM, DMARC](/en/domain/spf-dkim-dmarc)

## Related

- [Set up email accounts](/en/webspace/mail)
- [SPF, DKIM & DMARC](/en/domain/spf-dkim-dmarc)
- [DNS troubleshooting](/en/domain/dns-troubleshooting)
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