Hi Giuseppe, Thank you for your help on this! I got the list of domains from domains.csv. I want to search those domains against inbound emails which is stored in sourcetype = PP_messagelog. I want to match the sender domain field and check if they are using proper email security protocols or not by verifying TLS, SPF, DKIM DMARC etc. There is a field called "connection.tls.inbound.version" so I can check from that CSV that this domain is using TLS v1.2 or 1.1 or 1 For example, If the list contains gmail.com. I will check gmail.com against search and using the above field, find out that whether gmail.com is using TLSv1.2 or not. Hope this helps Thanks, Nitin
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