Email Deliverability for Tour Operators
If your emails land in spam, nothing else matters. Here is the deliverability checklist every operator needs.
Email deliverability is whether your message actually reaches the agent’s inbox instead of their spam folder. For an operator running cold outreach, it is the most important and most ignored part of the whole motion — a great email in spam converts nobody.
Authenticate your domain first
Before sending at any volume, set up SPF, DKIM, and DMARC records on your sending domain. These prove to mailbox providers that your email is really from you. Without them, your messages are treated as suspicious by default.
Warm the mailbox and respect limits
- Start at low daily volumes and ramp up gradually.
- Keep sending at human levels — dozens per day, not thousands.
- Send from a real, used mailbox, not a brand-new throwaway.
- Avoid spam-trigger phrases and heavy attachments.
List hygiene is deliverability
A clean, verified list keeps bounce rates low and your reputation intact. This is exactly why scraped lists are dangerous — see /blog/verified-travel-agent-contact-list. Pair good data with good copy from /blog/cold-email-templates-for-travel-agents.
Karibu protects your reputation
Karibu sends via your own warmed Gmail or Outlook at safe limits, includes a deliverability checker, and only ever uses verified contacts. Compare sending modes by plan on /pricing.
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