Signature
Written once, added on the way out.

The name, role and logo under your message: one for every address you send from, and its own for any address that needs it.

In short

What is an email signature?

An email signature is the few lines at the foot of a message that say who sent it: a name, a title, often a logo. No mail standard adds one, so the app that sends the message does.

How it works

Added where the sends meet

The composer, the assistant and a scheduled send all pass one point on the way out, and that is where the signature goes on.

Above the quoted message, not under

On a reply or a forward the composer marks where your words end, and the sign-off goes there, not under the quoted thread.

One for all, or one per address

All addresses holds the signature every address uses. Give one address its own and everybody sending from it signs with that.

What survives a save

Saving cleans the HTML, so the preview is what the recipient gets.

<a>Links<img>Logos and images<ul>ListsstyleInline styling<script>Removed on saveonclickRemoved on save

What you get

In the product today

Follows the From field

Change the address you send from and the signature swaps with it.

Kept through the queue

Remove it from a scheduled message and it still goes out unsigned.

The logo travels along

An uploaded logo goes inside the message instead of being fetched from a link.

Good practice

Getting the most out of it

  1. 01

    Keep it three lines

    A name, a role and one link beat a block nobody reads under every reply.

  2. 02

    Upload logos twice as wide

    Upload it at double the width you set, so it stays sharp on high-density screens.

  3. 03

    Sign as the team

    Everybody sending from billing@ signs with its signature, so write it for the team.

Questions

Asked often

Keep going

Works well with

Workspace and address settings

Your account sets the defaults. A workspace can answer differently, and any address can have its own signature and tracking.

Send as any alias

Reply from the exact address the mail arrived on.

Scheduled send

Write it now, land it when they are awake.

Start

Your domain,
your mail.

Point a domain at OpenEmail and read it in a mailbox built around it. The free plan covers one domain.

Your inbox,
on your own terms.

Email infrastructure for businesses, AI, agents and personal email. Built for scale, privacy and control. Everything email should have had from day one.

OpenEmail

Email infrastructure for businesses, AI, agents and personal email. Built for scale, privacy and control. Everything email should have had from day one.

© 2026 OpenEmail. All rights reserved.