Feature overview

Block read trackers


Missive auto blocks read trackers and 1x1 images to prevent senders from spying on what you do with their email. To be fully transparent, we used to offer read tracking, but we changed our minds and decided not only to remove the feature but actively fight against it. Here’s why.

Whenever you receive an email that contains a read tracker, you will see an icon (Block read trackers icon), letting you know that we've detected and blocked trackers. If you click on the icon, you can see who those trackers are and where they come from.

Automatically detected and blocked read tracker images

The tracking game continually evolves, the same goes for their methods. While we will keep our auto blockers up-to-date, it's possible that they don't cover you 100% of the time. For this and other purposes, we have always routed images through our own servers first. This means that trackers will never get your physical location because they can't know your IP address.

We currently block read trackers from these services:

Acoustic Acoustic
ActiveCampaign ActiveCampaign
Automize Automize
AWeber AWeber
Bananatag Bananatag
Benchmark One Benchmark One
Boomerang Boomerang
Campaign Monitor Campaign Monitor
Cirrus Insight Cirrus Insight
Constant Contact Constant Contact
ContactMonkey ContactMonkey
ConvertKit ConvertKit
crisp crisp
Critical Impact Critical Impact
Customer.io Customer.io
Emarsys Emarsys
FreshMail FreshMail
Front Front
Gem Gem
Getnotify Getnotify
GetResponse GetResponse
Gmass Gmass
GrowthDot GrowthDot
Hubspot Hubspot
iContact iContact
Intercom Intercom
LinkedIn LinkedIn
Litmus Litmus
Mailchimp Mailchimp
Mailgun Mailgun
Mailjet Mailjet
Mailspring Mailspring
MailTrack MailTrack
Mandrill Mandrill
Marketo Marketo
MixMax MixMax
Mixpanel Mixpanel
NetHunt NetHunt
Newton Newton
Outreach Outreach
phpList phpList
Pigeon Pigeon
Pipedrive Pipedrive
Polymail Polymail
Postmark Postmark
Rebump Rebump
Return Path Return Path
Sailthru Sailthru
Salesforce Salesforce
SendGrid SendGrid
Sendy Sendy
Sparkpost Sparkpost
Streak Streak
Superhuman Superhuman
Thunderhead Thunderhead
Tinyletter Tinyletter
Yesware Yesware
Yet Another Mail Merge Yet Another Mail Merge
Zendesk Sell Zendesk Sell

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