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  • 14 min

Best SaaS Black Friday Deals of 2025

Discover the top SaaS Black Friday deals of 2025 and save big on must-have software tools for your business. Don't miss out on exclusive offers to boost productivity and growth!
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Illustration of an anthropomorphic tiger in a black Warmy shirt, arms crossed, beside the text how to end an email professionally on a white background with orange grid lines.
  • Other
  • 15 min

How To End an Email Professionally

Master how to end an email with these 70 examples. Learn how to end emails that require a response, show
  • November 16, 2025
Text displays “SMTP Error 450 4.1.8 Sender address rejected: Domain not found – How to Fix It” on a white background featuring a faint orange gradient, highlighting the smtp error 450 4.1.8 troubleshooting topic.
  • Email Deliverability
  • 9 min

SMTP Error 450 4.1.8 – Sender address rejected: Domain not found: How to fix it

Learn why SMTP Error 450 4.1.8 and what causes it. Plus, learn how to resolve it, how to prevent it,
  • November 14, 2025
Illustration of an anthropomorphic tiger in a warmy t-shirt with folded arms next to the text: Zapmail Alternatives: Top Tools for Better Deliverability, highlighting top zapmail alternative options on a white background with an orange grid pattern.
  • Email Deliverability
  • 19 min

Zapmail Alternatives: Top Tools for Better Deliverability

Explore the best Zapmail alternatives for email outreach. Compare pricing, features, and deliverability tools for efficient cold email campaigns.
  • November 10, 2025
A confident cartoon tiger in a black warmy shirt stands with crossed arms next to the text 5 Best Email Warmup Tools for Yahoo, highlighting how Yahoo email deliverability can be improved, on a white background with a blue and orange grid in the corner.
  • Email Deliverability
  • 8 min

5 Best Email Warmup Tools for Yahoo

Ensuring Yahoo deliverability can be challenging without proper warmup. Here is our comprehensive list of best email warmup tools for
  • September 29, 2025
Illustration of an anthropomorphic tiger in a warmy t-shirt, standing with arms crossed, next to the text: Cold Email Strategy for Startup Companies: A Step-by-Step Guide to Getting Results.
  • Email Deliverability, Marketing
  • 11 min

Cold Email Strategy for Startup Companies: A Step-by-Step Guide to Getting Results

This step-by-step guide goes over how to get results with an effective cold email strategy for startup companies.
  • September 23, 2025
A muscular, anthropomorphic tiger in a warmy t-shirt stands with folded arms next to text that reads, 4 Strategies to Improve Yahoo Email Deliverability. Geometric grid lines decorate the top right corner.
  • Email Deliverability
  • 10 min

4 Strategies to Improve Yahoo Email Deliverability

Yahoo remains an important email client for many users. This blog will focus on 4 strategies to improve Yahoo email
  • October 7, 2025
Illustration of an orange tiger in a black warmy t-shirt standing with crossed arms beside the text: 5 Cold Email Templates That Work for SaaS Companies on a white background.
  • Email Deliverability, Marketing
  • 13 min

5 Cold Email Templates That Work For SaaS companies

Cold email outreach is effective and affordable for generating leads for SaaS businesses. But it takes more than a catchy

  • September 30, 2025
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  • Industry insights
  • 11 min

Cracking the Code: Why Emails Land in Gmail’s Promotions Tab

Once upon a time, Gmail’s inboxes were a mishmash of personal emails, work emails, transactional emails and so on. Then

  • September 3, 2025
Text graphic displaying SMTP Email Error 534 5.7.9 How to Resolve [SOLVED] on a white background with a soft red gradient in the bottom right corner.
  • Email Deliverability
  • 5 min

SMTP Email Error 534 5.7.9 – How to Resolve [SOLVED]

SMTP errors are never wanted by businesses and individuals relying on email for communication. One common issue is SMTP Error

  • September 2, 2025
Graphic with orange and red vertical rounded bars next to text: The Fastest Path to Yahoo Inboxes—Analyzing SMTP Providers for optimal Yahoo Inboxes delivery in 2025.
  • Industry insights
  • 10 min

The Fastest Path to Yahoo Inboxes: Analyzing SMTP Providers for Optimal Delivery

The Warmy Research Team conducted an experiment to uncover which among different SMTP providers result in a faster delivery to
  • August 27, 2025
Illustration of an anthropomorphic tiger in a black Warmy shirt, arms crossed, standing next to text that reads, Scaling Outreach: Here’s How to Calculate Your Ideal Mailbox Setup for effective scaling email outreach.
  • Marketing
  • 9 min

Scaling Email Outreach: Here’s How to Calculate Your Ideal Mailbox Setup

When it comes to scaling email outreach, you need to calculate your ideal mailbox setup to avoid throttling and higher
  • August 11, 2025
Illustration of an anthropomorphic tiger in a black Warmy t-shirt, arms crossed, next to the text: Email Deliverability Roadmap—your guide to getting more opens, clicks, and sales.
  • Email Deliverability
  • 11 min

The Email Deliverability Roadmap: Getting More Opens, Clicks, and Sales

We’re sure you know what we mean when we say ‘sending a message is just half the battle’ especially if

  • September 26, 2025
Illustration with two vertical rounded bars, one orange and one red, next to text about how tracking links and images—and the use of tracking pixels—may affect Gmail and Google Workspace deliverability in 2025.
  • Industry insights
  • 6 min

Don’t Let Your Pixels Hide: The Impact of Tracking Links and Images on Gmail and Google Workspace Deliverability

In cold email outreach campaigns, deliverability is a legit concern. And even after you draft the perfect email, the success

  • August 27, 2025
A cartoon tiger in a black warmy shirt stands with folded arms next to the text: Email Deliverability for Non-Techies—Everything You Need to Know. Orange grid lines appear in the corner.
  • Email Deliverability
  • 13 min

Everything You Need to Know About Email Deliverability—Explained for Non-Techies

Email deliverability is essential for effective email marketing but it is also a complicated concept for non-technical users. Email deliverability

  • August 29, 2025

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