1 day seems too often, I believe that will delete lots of unverified emails? How often are you verifying your Emails in the projects settings so that it doesn't delete unverified emails, automatically or?
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1 day is indeed too much, no matter your verification settings you will lose a lot of potential sites due to this. Personally I wouldn't recommend going below 3 days. In other words, if you need to go lower than 3, you're probably pushing your emails too much.
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1 day seems too often, I believe that will delete lots of unverified emails?
How often are you verifying your Emails in the projects settings so that it doesn't delete unverified emails, automatically or?