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postoni

Mattermost scheduler

Schedule Mattermost channel posts

Mattermost is the chat many engineering and security teams run themselves. Postoni posts to a Mattermost channel on your server, with follow-ups as replies in the same thread, so release notes and announcements go out on schedule.

Schedule Mattermost posts freeSee pricing
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Bloom Studio

@bloomstudio · now

Our autumn collection lands Friday. Twelve new glazes, all made by hand in our tiny studio.

Scheduled · Tue 11:30 AM
Illustration of a scheduled Mattermost post in the Postoni composer

Everything you can publish to Mattermost

Pick the format in the composer. Postoni handles the upload and the timing.

  • Text posts
  • Image and file attachments
  • Thread replies

Built around how Mattermost actually works

  • Your server, your rules

    Works with self-hosted and Mattermost Cloud servers. Postoni talks to the server address you enter, nothing else.

  • Replies in the thread

    Add follow-up parts in the composer and Postoni posts them as replies, keeping the channel tidy.

  • Markdown kept

    Mattermost renders Markdown, so headings, lists, code blocks and links come through as written.

How to schedule a Mattermost post

Four steps, about two minutes the first time. After that it's write, tweak, schedule.

  1. 1

    Create a personal access token

    In Mattermost, open Profile, then Security, then Personal Access Tokens, and create a token. Copy the access token, not the token ID.

  2. 2

    Copy the channel ID

    Click the channel name, choose View Info, and copy the ID shown at the bottom.

  3. 3

    Connect in Postoni

    Enter your server address, the token and the channel ID.

  4. 4

    Write and schedule

    Draft the post, add replies if you like, and pick a time.

Mattermost scheduling FAQ

Free Mattermost tools

Mattermost character counter

Check a draft against the 16,383-character limit before you post.

Character counter for every network

Paste one draft and see which networks it fits.

Does Postoni publish automatically to Mattermost?

Yes. At the scheduled time Postoni creates the post in the channel through the Mattermost API, then posts any replies in its thread.

I can't find Personal Access Tokens. Why?

They're off by default. A system admin can enable them under System Console, then Integrations, then Integration Management, and may need to allow your account to create them.

Who appears as the author?

The account the token belongs to. Many teams create a dedicated bot or announcements account for this.

Can I post to several channels?

Yes. Add one connection per channel, reusing the same server address and token.

Pairs well with Mattermost

Most people post the same idea to a few networks. These are the ones that usually go with Mattermost.

See all channels

Ready to put Mattermost on autopilot?

Connect Mattermost, write your first post and schedule it in two minutes. Free for 7 days, no card.

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  • Unlimited posts on every plan
  • Cancel anytime
  • Open-source core