folderly.com 的前十大競爭對手

mail-tester.com

mail-tester.com jest darmowym serwisem pozwalającym przetestować maile pod kątem spamu, niebezpiecznych treści czy konfiguracji serwera

kickbox.com

Explore the Kickbox Learning Center for expert insights on email verification, best practices, and essential guides to optimize your email marketing.

mailmeteor.com

Free Gmail mail merge for students, teachers, and academic institutions. Send emails from your Gmail with all the premium features of Mailmeteor.

gatefy.com

Security made by people, to protect people. Our mission is clear: to ensure that every email is sent or received securely.

supersend.io

SuperSend Terms of Service - Read our terms and conditions for using our platform.

mailgenius.com

Stop landing in Spam or Promotions. Get 3 free email deliverability tests to find spam triggers, email authentication issues, and inbox placement problems.

inboxpurge.com

Easily unsubscribe from unwanted emails, manage your sender list, and enjoy a privacy-centric tool designed with your needs in mind.

unspam.email

Schedule a spam test daily, weekly, or on set days. Unspam re-scores your email for authentication, reputation, and content, then emails you the result.

postbox-inc.com

These add-ons are considered legacy and are not supported by Postbox.

vamsoft.com

award winning e-mail security and monitoring software for microsoft exchange and iis. fully scalable from smb to enterprise with a budget-friendly price.