Based on our record, Inbox Inspector seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I recommend using the Inbox Preview tool to see which clients might be the biggest issues. I also agree with the other post that mentioned security software; you can run a test by having them whitelist and seeing if that helps. No campaign will run 100% the same on all screens / clients, but you can cover most combinations with trial and error. Source: about 4 years ago
Litmus - litmus tests and tracks your email campaigns, so you can always put your best design forward.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
GlockApps - G-Lock Apps is an interesting tool that might seem simple to some, but is quite essential to most online marketers.
AWeber - AWeber is an Email marketing software that's easy to use. Send email newsletters & autoresponders and deliver top notch emails.
Email on Acid - We make the send button safer. For every campaign, every message, and every inbox, Email on Acid has the time-saving tools you need to put your best email forward.