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Warmy Blog

Email Deliverability Benchmarks for Recruitment & HR

Email is a critical communication tool for recruitment and HR teams—whether you’re contacting candidates, following up on job offers or sending internal communications to your employees. But if your emails

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Text on a white background reads: SMTP Error 451 How to Resolve [SOLVED] in bold black and red text. A faint, blurred orange spot in the lower right corner adds subtle emphasis to the SMTP Error 451 issue.

SMTP Error 451 – How to Resolve [SOLVED]

Learn why SMTP Error 451 occurs and how to resolve this issue. Explore how Warmy.io can help prevent this issue
Illustration with orange and red rounded bars next to the text SMTP vs API Sending: What a Year of Google Sending Data Reveals 2025 on a white background.

SMTP vs API Sending: What a Year of Google Sending Data Reveals

Does SMTP vs API sending affect email deliverability? The Warmy Research Team used one year worth of data to answer
Mailchimp Deliverability

Mailchimp Deliverability: Best Practices and Tools

Businesses and marketers know that any digital marketing plan must include email marketing efforts. However, not everyone knows that email

Yahoo DMARC

Yahoo DMARC Setup: A Complete Guide for Enhanced Email Security

Unbelievably, emails are the starting point of about 90% of cyber attacks. Your email communications need to be protected more

DMARC Ofiice 365

DMARC Office 365: How to Set Up and Secure Your Email System

Various organizations utilize Office 365 for a more seamless communication process. However, despite its impressive email features, phishing and spam

DMARC Gmail

DMARC for Gmail: What Is It and How to Set It Up​

About 85% of daily emails in the digital world of today are deemed spam, and many of them can be

DKIM Yahoo

DKIM Yahoo Essentials: Protecting Your Emails from Spoofing

Ever wonder how hackers send emails that appear to be from reputable vendors or your bank? Known as email spoofing,

GMAIL DKIM

Step-by-Step Guide to Set Up DKIM for Google Workspace

91% of cyberattacks begin with a simple email. A somewhat simple and innocuous email correspondence, can be the beginning of

Microsoft Office 365

Configuring SPF for Enhanced Email Security in Microsoft Office 365

Almost 91% of cyberattacks start with a phishing email, did you know that? So how can companies safeguard themselves against

Yahoo SMTP

Yahoo SMTP Settings: A Step-by-Step Guide to Configuring Your Yahoo SMTP

Ever wonder why one email makes it to its destination and another gets lost in spam? In 2023, spam placement

Outlook SMTP

Outlook SMTP Settings: A Step-by-Step Guide to Configuring Your Outlook SMTP

Email is governed by a protocol called Simple Mail Transfer Protocol. This specific protocol controls how messages are sent and

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How to Configure Gmail SMTP Settings: Step-by-Step

Email transmission via the internet is made possible by the foundation of email communication, Simple Mail Transfer Protocol, or SMTP.

SMTP 543, SMTP 546, SMTP 547

SMTP Email Error 543, 546, 547 – How to Resolve [SOLVED]

Email is still a mainstay of communication in the linked world of contemporary business, allowing for quick and wide-ranging conversations

SMTP error 513

SMTP Email Error 513, 515, 517 – How to Resolve [SOLVED]

Email is still a mainstay of corporate communication in the digital age, supporting everything from everyday operations to major projects.

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