XIMBALO Design Studio
XIMBALORescue
← All articles
Mar 24, 2026 · 6 min read

Is Your Domain Blacklisted? Fixing Email Deliverability

When invoices and replies start landing in spam — or vanishing — your domain may be blacklisted. How it happens and how to recover.

Few things hurt a business quietly like broken email. Customers don't tell you their reply bounced; they just assume you ignored them. If your messages have started landing in spam — or not arriving at all — a blacklisted domain or misconfigured email is a likely cause.

How domains end up blacklisted

  • A compromised site or account is used to send spam.
  • Missing or wrong SPF, DKIM, and DMARC records.
  • Sending from a server with a bad IP reputation.
  • Sudden spikes in outbound mail that look automated.

The road back

Recovery means stopping the source (often cleaning a hacked site), fixing your authentication records, requesting delisting from the relevant blocklists, and warming the domain's reputation back up. It takes patience, but deliverability is fully recoverable when handled properly.

When to call in help

If your site is already down, hacked, or eating bandwidth, every hour of guesswork costs money. Ximbalo runs a full diagnostic, finds the root cause, and gives you a clear repair estimate before any work begins.

Book a consult or request a $250 assessment from the homepage — we get you back online and hardened against the next attack.

Site already in trouble?

Skip the guesswork. We diagnose the real problem and get you back online on clear, upfront terms.

Request an assessment

Keep reading