Based on our record, iRedMail should be more popular than Unlimited Email Tracker. It has been mentiond 2 times 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.
Snov.io is a free Gmail extension that can track when an email is opened, an attachment is viewed, and a link is clicked, and you can toggle each of these on/off. Source: about 3 years ago
For photo I use Immich. For contact and calendar I use my own mail server (iRedMail). For Cloud I have my own nextcloud server. With nextcloud you can sync contact and calendar of uou don't have a mail server likes iRedMail. Source: 11 months ago
I used to spend all my time maintaining e-mail quirks for my server. Adjust this, updated that, fix this breakage, yada yada. But then I decided to setup iRedMail which uses postfix, dovecot, certbot, roundcube, spamassasin, mariadb, ldap and all the bells and whistles. All I have to do now is make sure I don’t break it doing any software upgrades on freebsd. 10/10 scores after configuring and blacklist free. Source: about 2 years ago
Mailtrack.io - The best email tracking solution I've found. Free
Zimbra - Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.
EmailTracker.cc - Free Email Tracker for Gmail. Close More Deals with Comprehensive Email Tracking, Automated Follow-up Reminders, and Detailed Click Insights
mailcow - An open source mailserver suite.
mTracker - Here at MotionVFX, we try to make your lives easier.
Roundcube - Web-based IMAP email client