Verify emails in bulk for free
WARNING: DOING THIS WILL GET YOUR IP PUT IN THE SPAMHAUS POLICY BLACKLIST (IF IT IS NOT ALREADY LISTED).
The Spamhaus Policy Block List (PBL) is a list of all dynamic IP addresses and some static IP addresses, and is not specifically a blocklist. IPs on the PBL are not listed for sending spam or for anything they have done.
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Install python and required dependencies.
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******STUDY THE CSV FILE AND FORMAT THE DATA IN A SIMILAR MANNER. CSV MUST INCLUDE an "Email", "Website" and "Last Name" COLUMNS WITH THE EXACT SAME FORMAT. I used this to guess company emails based on first and last name + domain. Thus domain should NOT contain "https://www." and it should ONLY contain abc.com
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Read your csv file - Edit this Line with the path to your file
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Run verify-guessed.py
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Those emails with "TRUE" in the Verify_Email column and "FALSE" in the "Catch All" column are 95% safe to send and will not result in a hard bounce.