Clickable Phone Numbers & Buttons in HTML Email: A Click-to-Call Guide
A bulletproof button is a call to action coded in HTML and CSS instead of an image, so…
Email Best Practices
Industry-leading advice, reports and insights
Animated GIFs in Email: Best Practices Without Killing Deliverability
An animated gif in email is a multi-frame image file that plays automatically in most clients. To use…
HTML Email Design Best Practices for 2026: Templates That Actually Reach the Inbox
HTML email design best practices are the layout, coding, and accessibility rules that keep a template rendering correctly…
7 best Smartlead alternatives for 2026 compared
TL;DR: Smartlead is a sender, not a deliverability tool, so before you replace it, decide which problem you…
How to Increase Email Deliverability in the US Market
For sales and growth teams, email deliverability in the US market can be challenging. Here are six strategies…
Top 7 MailScale Alternatives For Your Email Outreach
TL;DR: The best MailScale alternatives for cold email outreach in 2026 are Warmy.io, Zapmail, Mailforge, Woodpecker, Inframail, Lemlist,…
7 Best MailReef Alternatives for Cold Email in 2026
TL;DR: MailReef is a cold email infrastructure tool built by cold emailers, giving each account a dedicated server…
7 Maildoso Alternatives for Better Cold Emailing
TL;DR: The best Maildoso alternatives for cold email outreach in 2026 are Warmy.io, Mailreef, Mailforge, Zapmail, Smartlead.ai, Woodpecker,…
DMARCbis (RFC 9989): What Changed and What You Do Now
TL;DR In May 2026 the IETF published RFC 9989, 9990, and 9991, the first substantive update to the…
How to Create & Check an SPF Record in 2026 (+Free Generator)
TL;DR An SPF record is a single TXT record in your domain’s DNS that lists which servers are…
How to Improve Email Sender Reputation Quickly: 9 Ways (2026)
How to improve email sender reputation quickly is to fix authentication first, then warm up the domain, clean…
What the EU AI Act means for email warm-up and AI cold outreach
The EU AI Act transparency rules under Article 50 take effect on August 2, 2026, and the date…
