1d (edited) • General Discussion 💬
MailCaff Update > Catch all domains are tricky
Catch all domains are tricky
Spent some time refining catch all domain scoring over the past week and it's been quite the challenge.
Catch all domains are tricky because they accept all emails, making it hard to tell if an address is actually valid.
Most verifiers struggle here, often marking addresses as deliverable when they're not or dismissing them prematurely.
This is what I've been working on to tackle this issue:
• Improved SMTP fingerprinting to better identify catch all behavior.
• Enhanced bounce signal analysis to catch subtle indications of invalid emails.
• Updated the machine learning prediction model for more accurate scoring.
These improvements help in distinguishing between truly deliverable addresses and those hiding behind catch all domains.
Why does this matter?
Accurate catch all scoring can significantly reduce bounce rates and improve email deliverability.
It means fewer wasted credits on undeliverable addresses and a better understanding of email list quality.
The feedback I get on catch all improvements is invaluable, so keep it coming.
For those interested in testing these features, MailCaff's still in pilot.
Let me know your thoughts as I continue refining these systems.
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MailCaff Update > Catch all domains are tricky
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