Christian Sørensen
Co-Founder & CEO, LeadHaste
Co-founded LeadHaste and runs the multichannel side of the system, from LinkedIn outreach to the agents that qualify replies before a human ever sees them.
Articles by Christian Sørensen
Showing the 24 most recent of 59
Prospeo Alternatives: Email Finders Compared on Accuracy and Cost
Compare Prospeo alternatives by charging model, verification, LinkedIn extension support, and published credit cost.
Findymail Pricing: What Each Plan Costs Per Verified Email
Compare Findymail pricing, Finder and Verifier credits, annual billing, rollover, API metering, team access, and effective cost per result.
52% Delete Cold Outreach Unread: Fix Relevance First
Firmable found that 52% of surveyed professionals delete cold outreach without reading it. Use four controls to test relevance before adding volume.
LinkedIn Sponsored InMail: When Paid Message Ads Beat Seats
Sponsored InMail is an advertising buy charged per delivered send, not a bigger InMail allowance. It buys one touch into an audience you describe, which is a different instrument from a sequence aimed at people you named.
Secure SMTP Relay Checklist: Test Authorization and TLS
Approve a secure SMTP relay with repeatable tests for identity, sender and recipient scope, TLS, rejection behavior, and audit evidence.
SMTP Relay vs SMTP Server: What You Actually Choose
SMTP relay vs SMTP server is really a choice between running the mail transfer layer yourself and delegating it to a managed provider.
Lead Generation for Physical Security Companies: Find Contract Windows Before the Bid
Lead generation for security companies works best when teams track contract stages, incumbents, and buying routes before a solicitation opens.
BIMI: What the Logo in the Inbox Actually Requires
BIMI puts your logo beside your name in supporting inboxes, but only after DMARC enforcement on the organizational domain and its subdomains. For cold outbound domains it earns nothing.
LinkedIn Sales Navigator Salesforce Integration: Four Gates
CRM Sync between Sales Navigator and Salesforce is gated by two licences, an API-capable Salesforce edition, admin status on both sides, and a one-instance limit. Check all four before you plan the rollout.
Zeliq's AI Sales Agent: The Buying Tests That Matter
Zeliq raised €7M to launch an AI sales agent. Funding is a supply signal, not product proof. Four acceptance tests to run before an agent touches your outbound.
B2B Buying Committee: Map Who Moves the Deal
Map the champion, economic buyer, evaluator, procurement owner, and blocker, then give each person the evidence needed to move the decision.
LinkedIn InMail Automation: Keep the Send Human
Build a governed InMail workflow with human approval, duplicate checks, stop rules, reply ownership, and an evidence trail that respects LinkedIn policy.
AI for Sales Prospecting: The Pre-Send Research Gate
Use a pre-send acceptance gate to stop unsupported AI prospect research before it becomes a message, CRM field, or repeated campaign error.
What Is MXToolbox? A Practical Triage Map
MXToolbox is a collection of DNS, email and reputation diagnostics. Use this triage map to choose the right check and interpret red results correctly.
Artisan AI Review: An Acceptance Test for Ava
Evaluate Artisan AI and Ava across data, targeting, approvals, reply handling, CRM sync, sending infrastructure, reporting and exit terms.
CloudTalk vs Nextiva: Specialist or Full Platform?
Compare CloudTalk and Nextiva by outbound workflow, communications scope, CRM writeback, analytics and the package each team must test.
Kixie Alternatives: Replace the Failed Requirement
Compare Kixie alternatives by the requirement that failed: dialing mode, CRM writeback, calling controls or total operating cost.
Postmark Alternatives: Match the Reason You Are Leaving
Compare Postmark alternatives by the constraint driving the move: volume economics, campaign tooling, regional control or operating depth.
Postmark Review: Test the Strict-Sender Trade-Off
An operating review of Postmark covering sender policy, Message Streams, delivery timing, suppressions, retention and the approval test.
Valimail Pricing: Cost of Automated Enforcement
Evaluate Valimail pricing by separating free monitoring from quote-only enforcement and pricing the DNS work, sender changes and controls it replaces.
Amazon SES Review: What You Own When You Run It
An operating review of Amazon SES: sandbox exit, identity setup, configuration sets, suppression behaviour, reputation metrics and the ownership it assumes.
Amazon SES Pricing: Cost per Delivered Message
Model Amazon SES pricing across tiers, attachment data, dedicated IPs, Virtual Deliverability Manager, Mail Manager and the engineering time SES assumes.
NeverBounce Alternatives: Compare Four Verifiers
Compare NeverBounce, ZeroBounce, Bouncer, and Kickbox by status logic, batch workflows, retention, exports, integrations, and published pricing.
NeverBounce vs Kickbox: Pick the Right Workflow
Compare NeverBounce vs Kickbox on pricing, result categories, batch APIs, integrations, exports, and the operating rules needed for uncertain emails.
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