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Warmy Blog

  • 6 min

What are warm leads and how to warm up them?

Warm leads are the lifeblood of any successful sales team. Whether it’s a small business or Fortune 500 company, having a steady stream of high-quality leads is essential to growth

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Spam Trap
  • Email Deliverability
  • 9 min

What is a Spam Trap and How to Avoid It?

Learn what a spam trap is, why they're dangerous, and the proven strategies to keep your email list clean and
  • February 18, 2026
How Long Does It Take to Warm Up an Email Domain for Marketing Companies
  • Email Deliverability
  • 15 min

How Long Does It Take to Warm Up an Email Domain for Marketing Agencies

Learn how long it takes to warm up an email domain and why it matters for marketing agencies. Discover best
  • February 17, 2026
5 Warning Signs Your Email Deliverability Is Suffering
  • Email Deliverability
  • 11 min

5 Warning Signs Your Email Deliverability Is Suffering

Are your emails landing in spam? Discover the 5 critical warning signs of poor email deliverability from declining open rates
  • February 17, 2026
Illustration of a muscular tiger in a cozy t-shirt, with the text: How Long Does It Take to Warm Up an Email Domain for SaaS Companies? Perfect for guides on how to warm up an email domain for SaaS businesses. White background, orange grid accent.
  • Email Deliverability
  • 13 min

How Long Does It Take to Warm Up an Email Domain for SaaS Companies?

Wondering how long it takes to warm up an email domain for SaaS companies? This guide explains it all plus
  • February 16, 2026
Illustration of an anthropomorphic tiger in a black warmy shirt with crossed arms, standing beside the text 5 Best Cold Email Outreach Agencies on a white background. Perfect for showcasing top cold email outreach agencies.
  • Marketing
  • 14 min

5 Best Cold Email Outreach Agencies

Looking for an expert in your cold email outreach efforts? We compare five best cold email outreach agencies and outline
  • February 16, 2026
A confident tiger mascot in a warmy t-shirt stands with arms crossed next to the text: How Online Stores Can Make Better Use of Their Email Lists, highlighting smart email lists strategies, on a white background with an orange grid in the corner.
  • Marketing
  • 11 min

How Online Stores Can Make Better Use of Their Email Lists

Learn 7 proven strategies to turn your email list into a revenue driver. From smart segmentation to deliverability, get more
  • February 16, 2026
A confident tiger character in a warm T-shirt stands with folded arms next to the text: 10 Tools to Improve Email Deliverability and Boost Performance in Your OKR-Driven Outreach Strategy.
  • Email Deliverability
  • 11 min

10 Tools to Improve Email Deliverability in Your OKR-Driven Outreach Strategy

Discover 10 essential tools to boost email deliverability and hit your OKR outreach goals. Learn how to improve sender reputation
  • February 15, 2026
A confident tiger mascot in a Warmy t-shirt stands with folded arms next to the text: Warmy vs Validity Everest—why growth teams are switching to AI Warmup.
  • Inside Warmy
  • 12 min

Warmy.io vs. Validity Everest: Why Growth Teams are Switching to AI Warmup

Discover why AI-powered email warmup is more effective and affordable for B2B sales than enterprise monitoring. This guide compares Warmy
  • February 15, 2026
Text that reads: SMTP Error 535 5.7.0 How to Fix It [SOLVED] on a white background, featuring a faint orange-pink gradient on the right side and highlighting the smtp error 535 5.7.0 issue.
  • Email Deliverability
  • 6 min

SMTP Error 535 5.7.0 – How to Fix It [SOLVED]

Email campaigns failing because of recurrent SMTP Error 535 5.7.0? Learn five things you can do to resolve this and
  • February 13, 2026
Illustration of an anthropomorphic tiger in a warmy shirt, standing with arms crossed. Text reads: “8 Best Email Warmup Tools and Deliverability Tools 2026.” Grid pattern in the top right corner.
  • Email Deliverability
  • 20 min

8 Best Email Warmup and Deliverability Tools 2026

Compare the 8 best email warmup tools of 2026. See how Warmy.io stacks up against Instantly, Lemwarm, Folderly & more
  • February 12, 2026
Text graphic featuring the message: smtp error 553 5.7.2 How to Fix It [SOLVED] in bold black and red on a white and orange gradient background.
  • Email Deliverability
  • 8 min

SMTP Error 553 5.7.2 – How to Fix It [SOLVED]

Emails getting rejected with SMTP Error 553 5.7.2 - Sender address rejected: not authorized? Learn how to fix this and
  • February 11, 2026
A digital graphic with the text “Workspace Management: Multi-Workspace Support Now Available in Warmy” beside a screenshot of a workspace management dashboard, ideal for boosting your workspace management email warmup process.
  • Inside Warmy
  • 8 min

Workspace Management: Multi-Workspace Support Now Available in Warmy

Create and manage multiple workspaces with independent billing and team access control. Learn more about Warmy’s new workspace management feature.
  • February 10, 2026
Text reads: Rare SMTP errors 522, 523, 531, 532, 540, 542, and 556 How to Fix It [SOLVED] in bold and blue font on a white background with a light orange gradient on the right.
  • Email Deliverability
  • 14 min

SMTP Errors 522, 523, 531, 532, 540, 542, 556 – Complete Guide [SOLVED]

There are less frequent and rare SMTP errors such as 522, 523, 531, 532, 540, 542, and 556. Learn how
  • February 9, 2026
Warmy Enhances Seed List Experience with Seed List Receiver Update and Performance Statistics, shown alongside a dashboard displaying performance metrics and colorful bar graphs.
  • Inside Warmy
  • 8 min

Warmy Enhances Seed List Experience with Seed List Receiver Update and Performance Statistics

Warmy’s now has enhanced download logic for incremental email seed list updates and a new Seed List Performance Statistics Dashboard
  • February 6, 2026

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