When your bounce rate spikes without warning
You hit send on a Lemlist campaign, then watch your bounce rate soar—despite having clean email lists. No invalid addresses, no typos… just a flood of “content blocked” and “spam detected.” Frustrating, right?
What’s really happening?
Lemlist’s default link tracking and image-hosting domain is shared across all users. Over time, if enough senders use that domain for marketing, it can lose reputation or even get blacklisted by corporate spam filters. The result: emails bounce instantly, leaving you scratching your head—your content is fine, but your tracking URLs raise red flags.
Signs to watch for:
Bounces with error messages like “content blocked” or “spam detected,” even on valid addresses.
Normal open/click tracking failing, or no tracking data at all.
Bounce reports that don’t list your sending domain as the culprit.
1) Quick-fix: set up your own tracking domain
Choose a subdomain (e.g., track.yourdomain.com).
Add CNAME records in your DNS settings pointing that subdomain to Lemlist’s tracking host (custom.lemlist.com—check Lemlist’s guide).
Activate custom tracking in Lemlist: go to Settings > Tracking, paste your subdomain, and validate.
Test by sending a message to a personal inbox—verify links load correctly and don’t bounce.
Within minutes, your emails use your domain for tracking, restoring deliverability.
2) Additional tips to safeguard deliverability
Warm up your tracking domain: send a few test emails over days before full campaigns.
Monitor domain reputation: use tools like MXToolbox or Postmark to catch issues early.
Limit tracking: if a campaign is hyper-sensitive (e.g., enterprise targets), consider disabling tracking links temporarily and rely on manual follow-up.
These steps keep filters happy—just don’t revert to the default Lemlist domain.
3) Why ReactIn sidesteps email bounces entirely
If deliverability dramas drive you nuts, consider shifting your outreach to LinkedIn with ReactIn:
Zero email bounces: reach prospects via LinkedIn InMails and connection requests—no mail servers, no spam filters.
Real-time engagement: invitations and DMs land in your leads’ LinkedIn inbox, where open rates are sky-high.
Stop worrying about DNS records and blacklisted domains. With ReactIn, your messages land directly in the professional inbox—guaranteed.
Ready to leave email bounces behind?
Test ReactIn today and see how LinkedIn outreach eliminates deliverability headaches.
