https://askravn.com/blogGuides on email verification, contact data and AI agents. https://askravn.com/blog/what-is-a-catch-all-email-domainhttps://askravn.com/blog/what-is-a-catch-all-email-domainTue, 03 Nov 2026 12:00:00 GMTA catch-all domain accepts mail for any address, real or not, so no verifier can prove a mailbox exists there. Here is how to spot and handle them. https://askravn.com/blog/how-email-verification-workshttps://askravn.com/blog/how-email-verification-worksTue, 03 Nov 2026 12:00:00 GMTEmail verification checks syntax, DNS and MX records, then asks the mail server about the mailbox without sending. Here is each step and its limits. https://askravn.com/blog/how-email-finders-workhttps://askravn.com/blog/how-email-finders-workTue, 03 Nov 2026 12:00:00 GMTEmail finders guess addresses from a name and company using known patterns like first.last, then verify each guess. Here is how, and what confidence means. https://askravn.com/blog/connect-claude-to-contact-data-mcphttps://askravn.com/blog/connect-claude-to-contact-data-mcpTue, 03 Nov 2026 12:00:00 GMTMCP lets Claude call outside tools. Here is what remote and local MCP servers are, how OAuth sign-in works, and how to add Ravn to Claude. https://askravn.com/blog/email-bounce-rate-guidehttps://askravn.com/blog/email-bounce-rate-guideTue, 03 Nov 2026 12:00:00 GMTWhat hard and soft bounces are, why they damage sender reputation, and a simple clean-before-send routine that keeps your bounce rate down. https://askravn.com/blog/hashed-email-audiences-explainedhttps://askravn.com/blog/hashed-email-audiences-explainedTue, 03 Nov 2026 12:00:00 GMTHow SHA-256 hashed customer lists work for Meta and Google, the normalisation rules, why hashing is not anonymisation, and how to build one locally. https://askravn.com/blog/b2b-contact-data-compliancehttps://askravn.com/blog/b2b-contact-data-complianceTue, 03 Nov 2026 12:00:00 GMTCAN-SPAM, CASL, GDPR, CCPA/CPRA, data broker rules and FCRA limits explained in plain language for teams that use B2B contact data.