The API returns the following allegrowStatus values:
safe- Valid email that is safe to send to based on risk analysis. Includes both catch-all and non-catch-all addresses.do_not_mail_abuse- Valid email with high risk of manual spam reports. Avoid emailing and use alternative channels like Calls and LinkedIn.spamtrap- Valid email, but high spam trap risk. Remove contact and source new email addresses.unknown- Inconclusive result with identified risk factors. Remove for 30 days and re-analyze in bulk at that point.block_bounce_risk- Invalid email highly likely to bounce. Remove contact and source new email addresses.dead_email- Invalid account that won’t bounce due to catch-all setup. Use alternative communication channels.more_time_required- (Sync endpoint only) More checks are still being run. Either re-try again later or upgrade to the asynchronous API to avoid this.