Is this option "Email status" in apollo useful? Or should i get all the data and use some other validation tool etc?

Most of the time it’s fine. But can also do so for old email IDs which no longer exist at a company. Double check with LinkedIn profile match or Better to use hunter for validation.

It's correct in 90% of the cases. You can cross verify the database on neverbounce or usebouncer, their accuracy is better.

How can we double check with linkedIn at scale? @Tanushree Sarkar

I have usually seen 10-15% invalid/catch-all emails from Apollo…which has stayed consistent I would suggest to the 2nd. Although it is enlightening to see that people are getting verified emails in good numbers as well from Apollo

@Ankit you don’t need to do that for the entire database. Do it only with the mail IDs where email delivery failed. They won’t be too many which can be easily checked manually. I’m only aware of Zoominfo capturing latest LinkedIn profiles, where you can validate at scale. Not otherwise imo