The 8 best cold email software options in 2026

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1. Apollo for combining prospecting and outreach in one platform “GMass for managing email campaigns via Chrome extension” Mailshake for multichannel cold outreach

   In Email tools and sequencers

2. Apollo for combining prospecting and outreach in one platform “GMass for managing email campaigns via Chrome extension” Mailshake for multichannel cold outreach

   In Cold email sequencing platforms

3. lemlist focuses on deliverability, with tools like automated warm-up processes and spam alerts, which makes it attractive if you're running high-volume outreach across multiple domains. “They'll research leads by pulling data from LinkedIn profiles, websites, and sales call recordings; track intent signals from real-time events like job changes or fundraising rounds; then, crucially, turn that information into structured data you can use in automated personalization.” And all this is backed by lemlist's database of 650+ million leads. The all-in-one pitch here is pretty darn good: Start with the verified lead database, use AI agents to prospect beyond it, and run personalized sequences with high deliverability.

   In Lead enrichment workflows

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