Short answer
Start with the MX record: if it doesn’t point at your mail server, messages never arrive. After that, check the mailbox isn’t full and look in the spam folder. A recent nameserver change is the most common cause of email that stopped working suddenly.
Learn more
- Not receiving email: how to fix incoming mailFind out why messages aren’t arriving: MX records, DNS pointing elsewhere, full mailboxes, forwarders, spam filtering and app sync problems.
- MX records: how email finds your mail serverWhat MX records are, how priority works, the correct MX for Traxio email, and how to change MX records for Google Workspace or Microsoft 365.
- Mailbox size, quotas and ‘mailbox full’ errorsHow mailbox quotas work, how email counts towards your 3GB, how to raise a quota, and how to stop a mailbox filling up again.
- Email stopped working after changing nameserversWhy mail stops when you move a domain’s DNS, and how to restore Microsoft 365, Google Workspace or old-host email records at Traxio.
Step-by-step
- Diagnose email delivery problemsAdvanced · 40 min · 9 steps