> ## Documentation Index
> Fetch the complete documentation index at: https://support.yena.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Sending limits and account safety

> How Yena paces campaign sending to protect your email deliverability and your LinkedIn account.

Campaigns send from **your** accounts — your work inbox, your LinkedIn profile. Yena's job is to make automated outreach indistinguishable from careful manual outreach, so those accounts stay healthy.

## Daily limits

Each sender account has a daily sending limit per channel. LinkedIn connection requests have their own, stricter limit — LinkedIn tolerates far fewer invitations than messages, and your manual activity counts against the same informal ceiling.

When a campaign reaches the day's limit, remaining people simply wait. Their status says so, and they go out in the next delivery window. Nothing is lost or skipped.

## Human pacing

* Messages go out inside your **delivery window**, on business days if you keep that setting on.
* LinkedIn and WhatsApp actions are spaced out with small randomized gaps rather than fired in a burst — a pattern of instant, evenly-timed actions is exactly what platforms flag.
* One campaign never monopolizes an account: limits are counted per sender account, across all campaigns using it.

## The do-not-contact list

Your workspace has a do-not-contact list. People on it are never sent a campaign step, in any campaign. Yena also maintains it automatically:

* **Replies** — a person who replies exits all campaigns (see [Track progress and replies](/en/campaigns/track-progress-and-replies)).
* **Bounces** — when an email hard-bounces because the address no longer exists, Yena records the address as undeliverable and stops sending to it. Temporary failures and out-of-office replies do not count.

You can review and manage the list in your workspace settings.

## Email signatures

Email sent through a provider's API does not automatically get the signature you set in Gmail or Outlook. Yena stores a signature per connected mailbox and appends it to every campaign email:

* **Google accounts** — import your existing Gmail signature with one click, or paste one.
* **Microsoft accounts** — Microsoft does not expose signatures, so paste yours once in **Settings → Connected Accounts**.

<Note>
  If your company adds a footer to all outgoing mail at the server level, leave the signature in Yena empty to avoid double-signing.
</Note>

## Good practice

* **Start small.** A short sequence to a well-chosen list outperforms a long chain to a broad one — and teaches you what works before you scale.
* **Warm up new mailboxes.** A freshly created email account should not send at full volume on day one.
* **Write like a person.** Personalization fields help, but the preview is the real test: read the rendered message and ask whether you would reply to it.
* **Respect a no.** If someone declines, add them to the do-not-contact list so no future campaign reaches them.