Email Deliverability7 min read
Email spam trigger words to avoid (and what to write instead)
A categorized list of email spam trigger words to avoid, why they flag filters even in 2026, and plain-language rewrites for the most common offenders.
Inbox Thinking
The Alterable blog on email deliverability, personalization, and design. For marketers who want to understand the inbox, not just use it.
Setting something up?
Step-by-step guides for Klaviyo, Mailchimp, HubSpot and more.
Checking an email?
Page 3 of 8 · 76 articles, newest first
Email Marketing6 min read
France didn't ban email open tracking. But the direction of travel is clear.
France's CNIL just published guidance on email tracking pixels. It's not a ban, but it's a clear signal of where regulators are heading on email open tracking.
Email Deliverability4 min read
We just added two new free email authentication tools
Alterable now offers a free SPF record generator and free DMARC record generator, build your DNS records in seconds.
Email Personalization7 min read
Dynamic images in email campaigns: a complete guide to personalization
Dynamic images let every subscriber see a version of your email built for them. Here's how they work and how to implement them.
Email Personalization8 min read
10 best ways to use dynamic content in email (with real examples)
Learn 10 proven ways to use dynamic content in email, with real campaign examples from brands doing it right. Go beyond first-name merge tags with open-time personalization.
Email PersonalizationUpdated 8 min read
How to use dynamic images for abandoned cart emails
Show shoppers the exact product they left behind. How dynamic images lift abandoned cart emails: setup, personalization, and cart-expiry timers.
Email Personalization6 min read
How to use dynamic image URLs in email marketing
Dynamic image URLs power almost every personalized image in email. How they work under the hood and how to use them without breaking your campaigns.
Email Personalization8 min read
Best practices for dynamic images in email to boost engagement
Dynamic images render at open time, not send time. Best practices for using them well: fallbacks, timing, personalization, and the mistakes that backfire.
Email DesignUpdated 6 min read
Evergreen vs. fixed date email countdown timers: key differences explained
Fixed date timers count down to one deadline; evergreen timers give each subscriber their own. How each works and which fits your campaign.
Email DeliverabilityUpdated 6 min read
How to check your email deliverability before you send
Find out how to check your spam score and email deliverability before you send anything. Fix any problems before they cost you clicks, opens, and money.