Sendingblue: Email Blacklists: How to Check, Get Removed, and Avoid

Sendingblue just issued a brilliant write-up:

Some emails never make it to the recipient’s inbox. Sometimes it’s due to a hard bounce generated by an invalid email address. Other times it’s because the sender’s IP address and/or domain has been blacklisted. Are email blacklists as bad as they sound? How easy is it to get removed from one? This article will cover all you need to know about email blacklists. What is an email blacklist? An email blacklist (or ‘blocklist’) is a collection of domains and/or IP addresses blocked from sending emails to email users because of spam activity. There are different kinds of blacklists including internal ones run by webmail providers (Gmail, Outlook, etc.), external ones run by security companies (Proofpoint, Barracuda, Cloudmark, etc.), and finally, those managed by non-profit organizations (Spamhaus, SURBL, etc.). My IP/domain’s been blacklisted, how did this happen? ISPs (Internet Service Providers) like Yahoo, Gmail, and Outlook use spam filters to

Read the original here: Email Blacklists: How to Check, Get Removed, and Avoid