Email blacklists block mail from domains or IPs flagged for spam. Getting listed can stop your messages reaching customers entirely. Prevention is far easier than removal.
Secure Your Accounts
- Use strong, unique passwords on every mailbox to prevent compromise.
- Watch for unusually high outgoing mail volume, a sign an account was hijacked.
- Keep website software and forms updated so they cannot be abused to send spam.
Authenticate Your Mail
- Set up SPF, DKIM, and DMARC so receivers can verify your messages.
- Send only through the official server, mail.yourdomain.com, with authenticated SMTP.
Send Responsibly
- Only email people who expect to hear from you.
- Avoid sudden large sending spikes; ramp up gradually.
- Always include a clear unsubscribe option in bulk mail.
- Remove bounced and invalid addresses from your lists.
Monitor Your Reputation
- Periodically check whether your domain or server IP appears on common blacklists.
- If listed, fix the underlying cause first, then request delisting through the blacklist's removal process.
If You Get Blacklisted
Identify and stop the source (often a compromised account or script), clean your lists, and submit delisting requests. For server-level blacklisting, contact us on WhatsApp at +254 796 358081 so we can investigate and help with removal.