Mail Rail support

Need help with Mail Rail? Email help@elektraset.com. We answer within two business days (Monday to Friday). Please include your Teams client (desktop, web or mobile), what you did, and the error text — never send passwords.

Publisher: Elektraset, s.r.o. · https://elektraset.com/

Getting started

In Microsoft Teams, open Apps, find Mail Rail and select Add.
Open Mail Rail from the app bar. The first time, select Grant access and approve the permissions (or ask your administrator to approve them for everyone).
Right-click the Mail Rail icon in the app bar and select Pin to keep your email in the Teams left rail.

For administrators

Approve for everyone: in the Microsoft Entra admin center, open Enterprise applications → Mail Rail → Permissions → Grant admin consent. Mail Rail uses only delegated permissions: User.Read, Mail.ReadWrite, Mail.Send, offline_access, plus the Teams resource-specific permission TeamsActivity.Send.User for activity feed notifications.
Pin for everyone: in the Teams admin center, open Teams apps → Setup policies, add Mail Rail to Installed apps and Pinned apps, and assign the policy. A third-party app cannot replace Teams' built-in items, but it can be pinned next to them.
Block or allow: manage Mail Rail in Teams apps → Manage apps like any other app.
Mail Rail needs Exchange Online mailboxes. Shared mailboxes and on-premises Exchange are not supported in this version.

Frequently asked questions

Does Mail Rail store my email? No. Email is read from Microsoft Graph when you open it and is not stored. See the privacy policy.

Why are images missing in some emails? Remote images are blocked by default to stop tracking pixels. Select Show images above the message.

How do notifications work? Open Settings (⚙) and turn on notifications for new and/or flagged mail. Notifications appear in the Teams activity feed and open the message in Mail Rail.

Which keyboard shortcuts are there? j/k next/previous, r reply, a reply all, f forward, e archive, # delete, s flag, u mark unread, c new email, / search.

What is the attachment limit? You can attach up to 25 MB in total to one email.

Can I use it outside Teams? Yes: open https://mail-rail.apps.elektraset.com/app and sign in with your Microsoft 365 account.

Status and changes

Version information: https://mail-rail.apps.elektraset.com/version