The Proxelion Blog

Cold email insights that actually move the needle

Practical advice on cold email, B2B outreach, and AI-powered sales — written for SDRs and founders who care about results.

7 Cold Email Mistakes That Are Silently Killing Your Reply Rate
Sales Strategy

7 Cold Email Mistakes That Are Silently Killing Your Reply Rate

Even experienced SDRs make these mistakes. If your cold emails are getting ignored, one of these seven problems is almost certainly the reason — and each one is fixable today.

May 8, 20257 min read
Cold Email Subject Lines: 50 Templates That Actually Get Opens
Templates & Examples

Cold Email Subject Lines: 50 Templates That Actually Get Opens

Your subject line determines whether your email gets read or deleted in under 2 seconds. Here are 50 proven cold email subject line templates, organized by type, with notes on when to use each.

May 1, 20256 min read
The Cold Email Follow-Up Sequence That Books More Meetings
Cold Email Tips

The Cold Email Follow-Up Sequence That Books More Meetings

Most replies don't come from the first email. They come from the follow-up. Here's how to build a 4-step sequence that converts without being annoying.

April 24, 20257 min read
B2B Cold Email Templates That Actually Work in 2025
Templates & Examples

B2B Cold Email Templates That Actually Work in 2025

10 proven cold email templates for B2B sales — organized by use case, with notes on why each one works and when to use it.

April 17, 20258 min read
Cold Email Deliverability: How to Land in the Inbox, Not Spam
Technical Guide

Cold Email Deliverability: How to Land in the Inbox, Not Spam

The best cold email in the world is useless if it lands in spam. Here's a practical guide to cold email deliverability — domain setup, warm-up, sending volume, and what to avoid.

April 10, 20258 min read
How to Personalize Cold Emails at Scale Without Sounding Robotic
Sales Strategy

How to Personalize Cold Emails at Scale Without Sounding Robotic

Personalization is what separates a 2% reply rate from a 15% reply rate. Here's a practical framework for personalizing cold emails at scale — without spending hours on every prospect.

April 3, 20257 min read

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