Remember the first time you @mentioned a teammate below an email, instead of forwarding it to them?

That’s a magical moment for many Missive users.

It’s when they realized email can be collaborative without creating more email.

Starting today, with Guest Access, you can give that same experience to anyone you work with — even if they’re not on your team.

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Invite third-party collaborators into the conversation

Guest Access makes it easy to bring people outside your organization — like an accountant, contractor, or client — directly into specific Missive conversations.

No more forwarding long threads. No more stitching together feedback from different tools. Just real-time chat alongside the emails that matter.

Here’s how it works:

• Go to a conversation
• Click the access menu → Invite guest
• Enter their email and send the invite

Your guest will get an email with a link to join. Once they create a free Missive account, they’ll land directly in the conversation you invited them to.

They’ll be able to read the full message history and reply via chat — but not email, tasks, or assignments. Just focused, limited access.

What you get (and don’t pay extra for)

Guest Access is included in all Missive plans. No add-ons. No hidden costs.

Each team member can invite up to 5 guests, and each guest can access up to 5 conversations.

That means if your team has 10 users, you can collaborate with up to 50 guests across 250 guest-enabled conversations — all for free.

A better way to loop in “sometimes” collaborators

We designed Guest Access for the people you don’t work with every day, but still need to collaborate with effectively — without paying for a full seat or dragging another tool into the mix.

If you’ve ever said:

I wish this person could just see this conversation—now they can.

Guest Access isn’t just for external vendors or partners. If you have teammates who don’t need full Missive functionality every day, Guest Access is a perfect lightweight option. No need to buy a full seat just to loop someone in occasionally.

Admins stay in control

By default, any team member can invite guests. But admins can manage this in:

Settings → Guests → Allow guest invitations

You can:

• Disable Guest Access across your org
• Restrict invitations to only admins or the org owner
• View and manage a list of all active guests
• See which conversations guests are part of
• Revoke access individually to stay within your limits

Want tighter control? You can restrict guest invitations so only admins or the org owner can send them. That way, access stays centralized and intentional.

What guests can (and can’t) do

Guests can:

• View the full message history of the conversation they’re invited to
• Chat in the conversation

Guests cannot:

• Reply to emails
• Be assigned to tasks
• Create tasks
• Access conversations they weren't explicitly invited to

This keeps their access simple, focused, and secure.

Need to make space? It’s easy.

Admins can see which guests are active and what they have access to. If you need to invite new guests but hit your limit, you can quickly revoke access from inactive ones to free up slots.

We can’t wait to see how you use Guest Access.

Whether you’re looping in a freelance designer, a tax advisor, or just a teammate who doesn't need a full Missive seat — Guest Access gives you the power to collaborate where the conversation is happening.

Try it today and let us know what you think!

Frequently Asked Questions

Can guests see the full history of the conversation?
Yes. Guests can view the entire message and chat history of any conversation they’re invited to.

Can guests reply to emails or send new ones?
No. Guests can only send chat messages. They cannot interact with the email side of the conversation.

Can guests be assigned to tasks or create tasks?
No. Guests don’t have access to task-related features in Missive.

Can guests @mention team members?
Yes. Guests can use @mentions in the chat area of the conversation to address specific people already present in the conversations. They can’t @mention people not present in the conversation.

What happens if I remove a guest from a conversation?
They will instantly lose access to that conversation and all its content.

Can I re-invite someone after removing them?
Absolutely. You can revoke access at any time and re-invite them later if needed.

Can I upgrade a guest to a full team member later?
Yes. If someone needs broader access, you can always add them as a regular user by assigning them a seat.

What if my guest has their own Missive organization?
They will be able to access the conversation(s) that you granted them, from their existing Missive interface. It will be treated like any other conversation.

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