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Sinch Email on Acid @EmailonAcid
Joined July 2009
  • Tweets 22,967
  • Following 916
  • Followers 11,514
4,798 Photos and videos
You've probably heard of SPF, DKIM, DMARC, and BIMI. But do you know if you're actually following them? Here's everything you need to know to stay compliant in 2026, so your emails actually land in the inbox: s.sinch.com/4uC7fjZ

Email Authentication Protocols in 2025: SPF, DKIM, DMARC & BIMI

Get essential info on how email authentication protocols work as well how they prevent email deliverability issues and email spoofing.

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Email on Acid is evolving into something bigger. Mailgun Inspect is now here – with stronger spam insights, enhanced accessibility checks, and a more connected workflow. Check it out → s.sinch.com/4t9tjkn

Email Quality Assurance Suite - Transactional Email API Service For Developers | Mailgun

Test email designs against different devices, clients, and accessibility guidelines for email campaign success.

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We’re not saying goodbye.  We’re leveling up.  The previews you trust are moving into Mailgun Inspect. We’re bringing everything you love with us, plus more types of messaging.  Start here → s.sinch.com/4mOOpmu

Email Quality Assurance Suite - Transactional Email API Service For Developers | Mailgun

Test email designs against different devices, clients, and accessibility guidelines for email campaign success.

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You built better emails with Email on Acid.  Now we’re taking it further with Mailgun Inspect.  More tools. More insights. Same goal: helping you send with confidence.  Start here → s.sinch.com/3OiuMqb

Email Quality Assurance Suite - Transactional Email API Service For Developers | Mailgun

Test email designs against different devices, clients, and accessibility guidelines for email campaign success.

mailgun.com
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We’re evolving into Mailgun Inspect, but the critical QA tools and features you love aren’t going away.  Same mission. Stronger platform.  Start here → s.sinch.com/4vlOB0l

Email Quality Assurance Suite - Transactional Email API Service For Developers | Mailgun

Test email designs against different devices, clients, and accessibility guidelines for email campaign success.

mailgun.com
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Emojis in subject lines — fun or overused? This guide breaks down what to consider before adding one to your next send. s.sinch.com/46LOS1S

Emojis in Subject Lines: Do They Improve Email Performance?

Check out our guide on emojis in email marketing campaigns. Increase visibility, brand awareness, and open rates while adding some fun.

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Valentine’s Day inboxes are crowded. 💔💘 Your subject line has one job: get opened. From flirty to anti-V-Day (plus emoji & preview text tips), here’s inspiration to help your emails stand out this February. 👇 s.sinch.com/4keMyG8

Valentine’s Day Email Subject Lines: Ideas You'll Love - Email on Acid

Boost your open rates with Valentine's Day email subject lines that open the hearts of customers and subscribers. Get inspired by our ideas!

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From the archives: setting your table role to “presentation” is one of the biggest accessibility wins in email. 💡 Here’s why it matters, and how Email on Acid catches it for you: s.sinch.com/44n06Ja
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If every email looked perfect everywhere, we’d be out of a job. 😉 Until then, media queries are the hero your HTML emails deserve. Learn how to use them like a pro: 👉 s.sinch.com/43fsoor

How to Use Email Media Queries Across Different Email Clients

Learn how to use email media queries to create responsive email for different screen sizes and mobile devices. See email client support for media queries.

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Font choice: small detail, huge impact. Pick wrong, and your carefully crafted email becomes a design disaster. 🚨 Our updated guide shows how to pick email-safe fonts that actually display everywhere. Read it here 👉 s.sinch.com/42EdKqw

Everything You Need to Know About Email Fonts

Learn the best font for email use, all about email-safe or web-safe fonts, and how to use a custom font in your email campaigns.

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Light mode? Love it. Dark mode? Love it. Emails that completely ignore your design rules in dark mode? Hate hate hate. 😬 To keep your emails readable, on-brand, and looking sharp, check out our updated guide: s.sinch.com/4nSsOJx

Master the Art of Dark Mode Email Design and Coding

What do developers and designers need to know about dark mode emails? Get advice for coding and creating campaigns for all subscribers.

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Coding for Outlook feels like playing Whac-A-Mole with HTML bugs. Our refreshed Outlook guide = your new mallet. Check it out: s.sinch.com/4mOrHZT

How to Fix Outlook HTML Email Rendering Issues

The task of developing Outlook HTML emails can be frustrating (to say the least). This should help! Get advice for troubleshooting Outlook issues.

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SPF. DKIM. DMARC. BIMI. No, it’s not alphabet soup 🍲 – it’s how your emails reach the inbox in 2025. We break it all down (minus the jargon) in our guide to email authentication: s.sinch.com/3ICTIpr

Email Authentication Protocols in 2025: SPF, DKIM, DMARC & BIMI

Get essential info on how email authentication protocols work as well how they prevent email deliverability issues and email spoofing.

emailonacid.com
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2,000 consumers shared their retail email preferences. We turned it into a strategy guide with tips on seasonal promos (yes, BFCM too), transactional sends, and cutting through inbox noise. 👉 s.sinch.com/4n3kMgj

Retail Email Marketing Strategy: Keys to Success in 2025

Discover the building blocks of a retail email marketing strategy. Get ideas for engaging B2C subscribers with effective email campaigns.

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Tired of copying old campaigns just to keep your emails on brand? Our blog covers how to build flexible, reusable email marketing templates that make every send faster (and less frustrating). Read it here 👉 s.sinch.com/45DJOwh
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Struggling with mobile email rendering? This 3-step guide shows you how to code responsive HTML emails that look great everywhere. Start building smarter: s.sinch.com/4fr4MSw

Code a Responsive HTML Email Template in 3 Simple Steps

Don’t alienate your readers on mobile devices. That's where most opens happen. Learn how to code responsive HTML emails with media queries.

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Check it before you wreck it 💥 On the blog, we break down the cost of not testing your emails before you send them: s.sinch.com/46YWZsR

Email Testing: What are the Risks, Costs, and Benefits?

Is email testing important enough to spend budget on? Find out what's at risk if you skip email testing and what you can gain.

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Ever tried reading an email without being able to see it? That’s the reality for millions. Catch the recap of our #EAA webinar for more on how to design with inclusion in mind: s.sinch.com/4k7cGkC
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If your emails aren’t funny, what are they? Functional? 😴 Add some LOLs to your CTAs, some spice your subject lines, and maybe – just maybe – make a sale in the process. Read the guide 👉 s.sinch.com/445WRox

Funny Email Examples that Prove Humor is a Winning Marketing Tactic

Funny email marketing gets attention, builds trust, and gets a response. See how to use humor in email marketing, tons of examples, and when to avoid it.

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People don’t just click “Buy Now” because your email was cute. They do it because it felt right – like you get them. Want to get people from “who dis?” to “heck yes”? Start here 👉 s.sinch.com/402qvcO

The Email Customer Journey: A Complete Marketing Guide

Email marketing plays a crucial role in customer journeys. Get step-by-step guidance on building customer journey maps with a focus on email strategy.

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