---
title: "FirstSales Blog - Latest Articles & Guides"
description: "Discover the latest sales insights, artificial intelligence trends, and outreach automation guides to help you close more deals and grow revenue."
canonical: "https://firstsales.io/blog/"
---

## 2026

* [7 AI SDR Mistakes That Burn Prospects in 2026June 15](/blog/ai-sdr-mistakes/)
* [AI SDR vs AI-Assisted SDR: Which Wins in 2026June 15](/blog/ai-sdr-vs-ai-assisted-sdr/)
* [AI Slop in Cold Email: How Mass Outreach Kills RepliesJune 15](/blog/ai-slop-cold-email/)
* [Cold Email Domain Burn Rate: Why Domains Die MonthlyJune 15](/blog/cold-email-domain-burn-rate/)
* [Cold Email Personalization Mistakes That Scream BotJune 15](/blog/cold-email-personalization-mistakes/)
* [Cold Email Reply Rate Benchmarks 2026: What's GoodJune 15](/blog/cold-email-reply-rate-benchmarks-2026/)
* [Cold Email Sending Frequency: The Cadence That ProtectsJune 15](/blog/cold-email-sending-frequency/)
* [Cost Per Meeting in Outbound: AI SDR vs Human Rep MathJune 15](/blog/cost-per-meeting-outbound/)
* [How Many Emails Per Inbox Per Day Is Safe in 2026?June 15](/blog/emails-per-inbox-per-day/)
* [Funding Round Cold Email: Turn Raises Into MeetingsJune 15](/blog/funding-round-cold-email/)
* [Gmail Sending Limits 2026: What's Safe for Cold EmailJune 15](/blog/gmail-sending-limit-2026/)
* [Google Bulk Sender Rules 2026: The 0.10% Spam CapJune 15](/blog/google-bulk-sender-rules-2026/)
* [Google Postmaster Tools for Cold Email: Read the DataJune 15](/blog/google-postmaster-tools-cold-email/)
* [Hiring Signals for Outbound: Time Cold Email by Job PostsJune 15](/blog/hiring-signal-outbound/)
* [How Many Cold Emails Per Day Without Burning DomainsJune 15](/blog/how-many-cold-emails-per-day/)
* [Human-in-the-Loop Cold Email: The 2026 Hybrid ModelJune 15](/blog/human-in-the-loop-cold-email/)
* [Job Change Trigger Emails: The 90-Day WindowJune 15](/blog/job-change-trigger-email/)
* [Microsoft Cold Email Rules 2026: Outlook & M365June 15](/blog/microsoft-cold-email-rules-2026/)
* [Pre-Warmed Inboxes: Shortcut or Trap in 2026?June 15](/blog/pre-warmed-inbox/)
* [Why AI SDRs Get Blocked: The Deliverability TrapJune 15](/blog/why-ai-sdrs-get-blocked/)

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