Consulti Blog

Practical guides on B2B prospecting, email deliverability, and cold outreach — written for growth-focused teams.

50 Cold Email Subject Lines That Actually Get Opened (2024)
Cold Outreach

50 Cold Email Subject Lines That Actually Get Opened (2024)

After testing millions of cold emails, I've distilled 50 cold email subject lines that consistently outperform. The average open rate is 20-25%, but personalized subject lines push past 40%. These 50 lines are organized by category — curiosity, pain point, social proof, follow-up, and breakup — with open rate benchmarks and A/B testing tips.

Jay FeldmanMar 19, 20269 min read
How to Find Anyone's Business Email Address (7 Methods That Work)
B2B Prospecting

How to Find Anyone's Business Email Address (7 Methods That Work)

Finding a business email address doesn't have to mean guessing formats or paying for an expensive tool. There are seven proven methods for finding verified business email addresses—ranging from dedicated B2B databases and LinkedIn tools to Google search operators and WHOIS records. I've used all of these in my own outreach campaigns, and I'll walk you through each method step-by-step, including when to use which approach and how to verify the address before you hit send.

Jay FeldmanMar 17, 20269 min read
Best Apollo.io Alternatives for B2B Prospecting in 2026
B2B Prospecting

Best Apollo.io Alternatives for B2B Prospecting in 2026

Apollo.io is popular, but it's not the only game in town—and for many sales teams, it's not even the best one. After testing eight B2B prospecting platforms head-to-head, I found that tools like Consulti, ZoomInfo, Lusha, and Hunter.io each serve different use cases better than Apollo does. Here's an honest, data-backed comparison of the best apollo alternatives available in 2026, including pricing, data quality, and the specific scenarios where each tool wins.

Jay FeldmanMar 12, 202610 min read
How to Set Up SPF, DKIM, and DMARC (Step-by-Step)
Email Deliverability

How to Set Up SPF, DKIM, and DMARC (Step-by-Step)

Setting up SPF, DKIM, and DMARC is the single most important thing you can do to protect your sending domain and stay out of spam folders. I've set these up for hundreds of domains and it's rarely as complicated as people think — but the mistakes can tank your deliverability for months. This guide covers the exact DNS records you need, common pitfalls I see every week, and how to verify everything is working correctly using free tools.

Jay FeldmanMar 10, 202610 min read
Cold Email Templates That Actually Get Replies
Cold Outreach

Cold Email Templates That Actually Get Replies

After sending over 500,000 cold emails across dozens of campaigns, I've learned what works and what gets you instantly deleted. These aren't generic templates I pulled from a blog — they're the actual frameworks I use with clients today. Whether you're booking SaaS demos, selling services, or recruiting, these cold email templates are ready to copy, personalize, and send. I'll cover intro emails, multi-step follow-up sequences, breakup emails, referral asks, and trigger-based outreach.

Jay FeldmanMar 5, 202610 min read
12 Best B2B Lead Generation Tools Compared (2026)
B2B Prospecting

12 Best B2B Lead Generation Tools Compared (2026)

The best B2B lead generation tools give you verified contact data — names, emails, company details — so your sales team can reach decision-makers without manual research. After testing every major platform, here are the 12 tools worth considering in 2026, ranked by database quality, pricing, and real-world performance.

Jay FeldmanMar 3, 202611 min read
The Complete Guide to Email Deliverability in 2026
Email Deliverability

The Complete Guide to Email Deliverability in 2026

Email deliverability determines whether your emails land in the inbox or spam. In 2026, the average deliverability rate is 85% — meaning 1 in 6 emails is never seen. This guide covers authentication, sender reputation, list hygiene, and tools to diagnose and fix every common deliverability problem.

Jay FeldmanFeb 25, 202611 min read