Troubleshooting

Mail I send goes to spam. Check your DNS wizard is all green (portal → your domain). SPF/DKIM/DMARC failures are the usual cause; the wizard shows exactly which record is wrong. New domains also carry little reputation — volume builds it.

I'm not receiving mail. Verify your MX record: nslookup -type=MX yourdomain.com should return mail.numail.app. Old MX records from a previous provider must be removed.

Sign-in fails in a mail app but webmail works. Re-check port/SSL: IMAP 993 SSL, SMTP 465 SSL — not 587/143.

I deleted a mailbox by mistake. Deleted mailbox contents are not recoverable — contact support immediately and we'll check whether a backup snapshot predates the deletion.

Something else? Email support@numail.app with your domain name and what you expected vs. what happened.