Mail.com Not Receiving Emails
Trouble signing in or sending instead? See our guide on Mail.com login and sending problems. This one's about mail that isn't arriving.
1. Check the right address
Mail.com lets you pick from dozens of domains at signup, and it's genuinely easy to lose track of which exact address you gave someone. If a sender says they emailed you, confirm with them the exact domain, not just the username part.
2. Check Spam first
This resolves the majority of "missing email" cases I look into. Mark anything found there as "Not Spam" and add the sender to your address book.
3. Check filters and forwarding
- Settings → Filters — check for a rule silently moving or deleting incoming mail.
- Settings → Mail Forwarding — check for an old rule you forgot was still active.
4. Check storage quota
A full mailbox can bounce new mail back to the sender rather than let it arrive, sometimes with no clear warning showing up in the account itself. Check your used storage under Settings.
5. Ask the sender for the bounce message
If they got an error reaching you, the exact wording — "mailbox full," "address not found," "message rejected" — tells you what actually happened rather than leaving you to guess.
One specific pattern worth recognizing: an error mentioning "invalid DNS MX or A/AAAA resource record" points to a domain-routing problem on Mail.com's side for that particular domain variant, not anything wrong with the recipient's account or settings. This has shown up on some of Mail.com's less common domain options — if you're seeing this exact wording, it's not something you can fix by changing your own settings; it needs attention from Mail.com's side for that specific domain.