What's new in June 2026

Audience And Campaigns Enabled For Every Team

Audience and Campaigns are now available to every team, instead of being turned on team by team.

Separate Dashboard Metrics For Transactional And Marketing Mode

The dashboard now shows different cards and numbers in transactional and marketing mode, where it used to show one set for everything.

In transactional mode, the usage card counts emails against your email limit and the analytics table groups sends by tag. In marketing mode, it counts contacts against your contact limit, the traffic chart shows a bar on each campaign's send date, delivery performance adds click and unsubscribe rates, and the table has one row per campaign.

Transactional numbers leave out campaign sends but still count sends that have no tag, and those now appear in their own Untagged row.

Card Grid View For Marketing Emails

Marketing emails now show as folders and thumbnail cards, with a toggle back to the table view.

Folders now belong to either marketing or transactional emails, and the marketing table hides the columns that only apply to transactional emails (slug, sent, opened and open rate). The transactional email list is unchanged.

Two-Column Layout For The Transactional Email Page

The transactional email page now has its settings on the left and a preview on the right, with desktop and mobile tabs and a language selector.

Name and subject save as you type, and the settings panel also shows the slug and the email's merge tags. The version status now sits in the header and turns green when a version is live, and version history opens in a drawer over the page instead of a separate view.

Copy To Marketing And Copy To Transactional Email Actions

Each email in the list now has a “Copy to Marketing” or “Copy to Transactional” action that copies it to the other mode.

The copy stays in the same folder, so an email designed for one mode no longer has to be rebuilt for the other.

Three-Day Sessions And An Expiry Warning In The Email Editor

The email editor now notices an expired session and offers to sign you back in before unsaved work is lost.

An expired session used to show up only as a failed save. Sessions now also last three days instead of two hours, so being signed out while editing is much less likely. The editor also uses Lettr's own colors now.

Warning State For Incomplete Steps In The Campaign Stepper

A campaign step that has been passed but still has unresolved issues now shows a warning instead of a green tick.

The step navigation also moved into the top bar.

X-Correlation-Id Header On Every API Response

Every API response now includes an X-Correlation-Id header, and requests that end in an unexpected error are now logged.

Those requests used to leave no log entry. The API log page has new account and correlation id filters, so one id is enough to trace a failing request between your side and ours.

Brand Impersonation Screening For New Sending Domains

New sending domains are now checked for names that imitate a well-known brand, such as a swapped digit or a lookalike spelling.

A clear lookalike is created as blocked, with a banner on the Domains page saying so, and a borderline one goes to our team for review. If the check itself fails, the domain is created as usual.

Clearer Messages For Domains Registered Elsewhere And Cancelled Domain Connect Setup

Adding a sending domain that an account outside Lettr has already registered with the provider now says so and asks you to contact support, instead of failing with a general error.

Cancelling the one-click Cloudflare setup no longer looks like success. The sending, inbound and tracking domain pages now show that the setup was cancelled.