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Email Setup and Compliance ​

LeadBox supports permission-based and transactional email. This section explains where to set up email sending, what must be in place before real sends can work, and how compliance settings affect sending.

What LeadBox supports ​

LeadBox supports permission-based and transactional email.

Real sending depends on your sender setup, domain verification, and compliance state. That means it is not enough to turn on a provider alone. Your sender details, domain checks, and unsubscribe or suppression setup all affect whether sending is ready.

Where to go in the app ​

Go to Settings -> Integrations and look for Email Integrations when you want to review provider choice, sender identity, domain verification, or test-send readiness.

Go to Settings -> Compliance when you want to review unsubscribe and compliance settings, including unsubscribe text and email suppressions.

Go to Outreach -> Webforms when you want to configure consent capture, double opt-in, or welcome / auto-reply email behavior for forms.

Before you send ​

Use this sequence before you rely on real email sending:

  • Choose Postmark instead of Mock
  • Set a sender identity
  • Confirm the sender identity
  • Verify the sending domain, especially DKIM

If one of those pieces is incomplete, real sending may still be blocked even if the rest of the workspace looks ready.

Broadcast warmup for new workspaces ​

New workspaces start with a short broadcast warmup to support healthy deliverability.

During the first 7 days, LeadBox may limit how many broadcast recipients you can launch in one day. This is separate from sender setup and separate from credits. It is a short sending ramp for new workspaces.

Current warmup schedule:

  • days 0-1: up to 250 broadcast recipients per day
  • days 2-3: up to 1,000 broadcast recipients per day
  • days 4-7: up to 2,500 broadcast recipients per day
  • day 8 onward: no broadcast warmup cap

If your workspace is still in warmup, go to Outreach -> Campaigns and look for the readiness panel. LeadBox shows how many broadcast recipients you can still send today and when that resets.

What LeadBox does not support ​

LeadBox does not support cold outreach through Postmark.

LeadBox also does not support permission-free sending. Customers should treat sender setup, unsubscribe handling, suppressions, and consent capture as part of the same sending foundation.