There are two versions of this problem and they have different fixes: emails you send landing in other people’s junk, and emails you should receive landing in yours.
Your emails go to their junk
This is almost always a domain authentication problem. Receiving servers check three DNS records – SPF, DKIM and DMARC – to confirm an email really came from your domain. If any are missing or wrong, you look like a spoofer and get junked.
- Test your domain at mxtoolbox.com/domain – failures show in red
- These records break most often after switching email provider, adding a newsletter tool, or changing website host
- Fixing them is DNS work, not something to guess at: raise a ticket and we’ll set all three up properly
Also avoid the classic content triggers: a signature that’s one big image, lots of links, and ALL CAPS subject lines.
Good emails go to your junk
- In Outlook, right-click the email, then Junk > Never block sender
- Check Settings > Mail > Rules for an old rule moving things – rules created years ago are a surprisingly common culprit
- Check Junk email settings: if the filter is set to Exclusive, only your safe-senders list gets through, which is usually too aggressive
If a whole company’s mail is vanishing (not just one sender), stop and raise a ticket – that pattern usually means a transport rule or quarantine policy needs attention, and it can hide genuinely important mail.