CREDIT: Content for this post is based on a report generously shared by Sprout24 and provides a detailed analysis of incidents using publicly available data,...
Email Deliverability in 2026
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Email Marketing
Sender guidelines from Google, Yahoo, and Microsoft
May 2025 Microsoft new sender requirements Microsoft will begin enforcing stricter authentication requirements for high-volume email senders (those sending...
Advanced Deliverability and Inboxing Optimizations
Email deliverability is the ability to deliver emails to subscribers’ inboxes, while email delivery refers to ability to deliver email to mailbox provider...
Email Verification Service Provider Comparison
Email deliverability has been a hot topic for marketers for quite some time. With mailbox providers getting more aggressive about their spam blocking and...
Dedicated IP for Email Marketing – Do You Need It?
If you work with email marketing campaigns you no doubt heard about dedicated IP (internet protocol) addresses. Perhaps you have been wondering about who uses...
High complaint rate on Feb 20 for Hotmail, MSN, Live
Many customers who sent campaigns on Feb 20 reported high complaint rates. Upon further review of engagement by domain reports we are able to confirm that the...
How to setup an AB test on an email campaign
UPDATE: Subject line AB testing is now live. You can use this article to set up other types of AB tests, such as on send time, best subject line, CTA, or a...
Gmail Outage Causes Erroneous Hard Bounces
You may have heard by now that Google services have experienced major outages on Dec 14 and 15. Not only Gmail users had difficulties logging into their...
Improve Email Deliverability – A Guide to Best Practices
With crowded consumer and business inboxes, email deliverability and inbox placement has become a top priority for marketers in recent years. Getting emails...
Email Marketing Campaign Tracking in Google Analytics
If you use an email marketing platform to manage your email campaigns you already know what your open and click-through rates are. But do you know how many...