Daily sending limits

Every workspace has a daily limit for the emails it sends to your users. A new workspace starts small, and the limit grows on its own as your emails reach real inboxes. Emails above the limit are never thrown away: they wait in the queue and go out as soon as there’s room.

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Why there’s a limit

All workspaces send through Sleekplan’s shared email infrastructure. Gmail, Outlook and other mailbox providers judge that infrastructure by the bounces and spam reports of everything it sends. One workspace mailing a list of addresses that don’t exist can push everyone’s emails into spam, or get sending paused for every workspace at once. A limit that grows with each workspace’s track record prevents that. A workspace without a track record sends a little, and the more of its emails arrive safely, the more it can send.

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Which emails count

The limit covers the emails your workspace sends to your users: new comments, mentions, status updates, changelog updates, and removal notices. Two kinds of email never count:

• Sign-in codes. They go out instantly and don’t count toward your limit, so a busy day never locks your users out.
• Emails to your team, such as the alerts your admins get about new posts.

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How much you can send

Each day, your limit is twice your busiest day of the last 90 days, within the range above. Only emails that actually left Sleekplan count, and a day runs from midnight to midnight UTC. For example, a paid workspace starts at 200. Send 200 emails on Monday and you can send 400 on Tuesday, then 800 on Wednesday, and so on up to the limit of your plan. Your busiest day stays in the calculation for 90 days, so a quiet week doesn’t shrink your limit. The quarter rule means a bigger monthly limit gives you room to grow. With a monthly email limit of 1,000,000, for example through the Email notifications add-on, your daily limit can grow to 250,000. An upgrade or add-on raises how far your limit can grow right away. Your daily limit then grows into the new range day by day as you send. Your plan’s monthly email limit still applies on top of the daily one. Once it’s used up, notification emails aren’t sent until it resets, and the customer’s Emails tab shows them as Not sent.

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See where you stand

Go to Settings → Administration → Billing. Under Usage & limits, the Emails today bar shows how many emails your workspace sent today and its limit for the day, for example 37 / 200. It resets at midnight UTC. The text under the bar tells you which kind of limit you have. If it says your limit grows on its own as your emails get delivered, it follows the rules above. If it only asks Need a higher limit?, your workspace has a fixed limit set by our team. It doesn’t grow on its own. The same section tells you when your limit was lowered because of bounces or spam reports, and how many emails are waiting once you’ve reached the day’s limit. If our team paused sending for your workspace, the bar shows Paused.

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What happens above the limit

When your workspace reaches its limit for the day, the remaining emails wait in the queue. We check them again every hour, and they go out as soon as your workspace has room again:

• within the hour after your limit is raised, or
• shortly after midnight UTC, when a new day starts.

While an email waits, it shows as Queued on the customer’s Emails tab.

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Keep your sending healthy

Your limit only grows while your emails reach real people. We look at your last 7 days of sending: Once the bad days are more than 7 days behind you, your limit goes back to what you had earned. There’s also a faster safety net. If more than 25 of your emails bounce within one hour, we pause all emails from your workspace for 24 hours and our team is notified. Paused emails wait in the queue and go out once the pause ends. A few habits keep you well clear of these lines:

• Only email real addresses. When you sign users in with single sign-on, pass each user’s real email address. A made-up placeholder like user-123@yourcompany.com bounces on every email.
• Remove addresses that bounce. A customer’s sending health shows whether their address still works.
• Only add people who expect to hear from you. Importing a list of addresses that never asked for your emails leads to spam reports.

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Get a higher limit

If your workspace needs more than its current limit, for example for a launch announcement, contact support or use Contact us next to the Emails today bar. Tell us what you’re sending and to roughly how many people. When we raise your limit, emails that are already waiting go out within the hour.

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