How Does IP Reputation Affect Email Deliverability and Spam Filtering? or What’s the Best Way to Impr

Short answer: YES. Long answer: YEEEEES.

Bad ip reputation = instant spam folder or worse. Had a client whose emails just vanished—turned out their IP was blacklisted.

For free checks, try Mail-Tester or Barracuda Central. And if you’re using shared hosting for emails… stop. Get a dedicated IP.