Lettermint Release Notes

Name: Lettermint
Brand: Lettermint

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51 release notes curated from 1 source by the Releasebot Team. Last updated: Oct 16, 2026

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Oct 15, 2026
Date parsed from source:
Oct 15, 2026

First seen by Releasebot:
Oct 16, 2026
Lettermint

Let your team log in with Single Sign-On (SSO)

Lettermint adds SSO login with Okta, Microsoft Entra ID, and other SAML or OIDC providers, plus SCIM team-member syncing.

Connect Okta, Microsoft Entra ID or any other SAML or OIDC provider and let your team log in with SSO. SCIM keeps your team members in sync.
Original source
Oct 8, 2026
Date parsed from source:
Oct 8, 2026

First seen by Releasebot:
Oct 16, 2026
Lettermint

Test your email integration with sandbox mode

Lettermint lets users send API and SMTP requests to a sandbox project, processing emails normally without delivering them.

Send real API and SMTP requests to a sandbox project. Lettermint handles every email as usual, except nothing gets delivered.
Original source
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Sep 29, 2026
Date parsed from source:
Sep 29, 2026

First seen by Releasebot:
Sep 29, 2026
Lettermint

The Lettermint CLI brings your email to the terminal

Lettermint adds email sending, domain setup, and webhook testing from the CLI on macOS, Linux, and Windows.

Send email, set up domains and test webhooks without opening the dashboard. Available for macOS, Linux and Windows.
Original source
Sep 23, 2026
Date parsed from source:
Sep 23, 2026

First seen by Releasebot:
Sep 24, 2026

Modified by Releasebot:
Sep 29, 2026
Lettermint

New SDKs for .NET, Rust, Elixir and Symfony

Lettermint adds official SDKs for .NET, Rust, Elixir and Symfony to simplify sending email from applications.

Working with .NET, Rust, Elixir or Symfony? Our new official SDKs make it easy to send email from your application.
Original source
Sep 16, 2026
Date parsed from source:
Sep 16, 2026

First seen by Releasebot:
Sep 24, 2026
Lettermint

Schedule your emails in advance with scheduled emails

Lettermint adds email scheduling for timed campaigns and follow-ups.

Schedule your emails and let Lettermint send them when it suits you.

Line up a campaign for Black Friday or send a follow-up three days after signup.
Original source
Similar to Lettermint with recent updates:
Sep 8, 2026
Date parsed from source:
Sep 8, 2026

First seen by Releasebot:
Sep 9, 2026

Modified by Releasebot:
Sep 29, 2026
Lettermint

Ask your AI assistant about your email delivery via MCP

Lettermint adds MCP server support for Claude, ChatGPT and other assistants to track emails and send them directly.

Connect Claude, ChatGPT or another assistant to Lettermint with our MCP server. See how your emails are doing and send them straight from your assistant.
Original source
Aug 21, 2026
Date parsed from source:
Aug 21, 2026

First seen by Releasebot:
Aug 21, 2026
Lettermint

Set up webhooks for your whole team, multiple projects, or single routes

Lettermint expands webhooks so teams can apply them from one route to the whole team.

Decide how broadly your webhooks apply, from a single route to your whole team.

No more separate webhook for every route.
Original source
Aug 18, 2026
Date parsed from source:
Aug 18, 2026

First seen by Releasebot:
Aug 18, 2026

Modified by Releasebot:
Sep 29, 2026
Lettermint

Import and export your suppressions in bulk

Lettermint adds CSV import and export for suppressions, making it easier to bring lists over and manage them in your own system.

Import and export your suppressions as a CSV.

Bring an existing list over in one go, or work with it in your own system.
Original source
Aug 14, 2026
Date parsed from source:
Aug 14, 2026

First seen by Releasebot:
Aug 15, 2026
Lettermint

Rotate your DKIM keys automatically with managed DKIM

Lettermint adds Managed DKIM, rotating DKIM keys on schedule without interrupting sending.

Managed DKIM rotates your DKIM keys on a schedule, without interrupting your sending.

No key stays in use longer than it should.
Original source
Aug 6, 2026
Date parsed from source:
Aug 6, 2026

First seen by Releasebot:
Sep 29, 2026
Lettermint

Send email only over an encrypted connection with Enforced TLS

Lettermint adds Enforced TLS to control what happens when secure delivery fails per route or message.

We already encrypt the connection to the receiving server whenever we can.

With Enforced TLS you decide what happens when that fails, per route or per message.
Original source
Jul 30, 2026
Date parsed from source:
Jul 30, 2026

First seen by Releasebot:
Jul 31, 2026
Lettermint

Freshly Minted: what's new in July

Lettermint adds custom roles and permissions, tighter API token control, an out-of-office reply toggle, and smaller improvements.

Our July roundup with custom roles and permissions, tighter control over your API tokens, a toggle that stops out-of-office replies and a batch of smaller improvements.
Original source
Jul 28, 2026
Date parsed from source:
Jul 28, 2026

First seen by Releasebot:
Jul 29, 2026

Modified by Releasebot:
Sep 29, 2026
Lettermint

Secure your API tokens with an IP allowlist

Lettermint adds IP-level API token security to control which servers can send.

An extra layer of security on your API tokens protects your sending at IP level. You decide which servers are allowed to send.
Original source
Jul 23, 2026
Date parsed from source:
Jul 23, 2026

First seen by Releasebot:
Jul 25, 2026

Modified by Releasebot:
Sep 29, 2026
Lettermint

Give team members and clients exactly the right access (RBAC)

Lettermint adds role-based access control, letting teams create custom roles and set per-member or per-client permissions.

Create your own roles and decide per team member or client what they can see and do.

Role-based access control (RBAC) is now available.
Original source
Jul 3, 2026
Date parsed from source:
Jul 3, 2026

First seen by Releasebot:
Jul 4, 2026

Modified by Releasebot:
Sep 29, 2026
Lettermint

Automatic plain text fallback for your emails

Lettermint adds plain text fallbacks for HTML-only emails to improve inbox delivery.

Sending HTML-only emails? Turn on the plain text fallback and every email automatically gets a text version. So they land in the inbox more often.
Original source
Jun 30, 2026
Date parsed from source:
Jun 30, 2026

First seen by Releasebot:
Jun 30, 2026
Lettermint

"Freshly Minted: what's new in June"

Lettermint adds a new dashboard, Team API support in SDKs, WP-CLI for WordPress and smaller fixes in its first monthly roundup.

Our first monthly roundup with a brand new Lettermint dashboard, Team API support in our SDKs, WP-CLI for WordPress and a batch of smaller fixes.
Original source