Sending Windows & Schedules
Control when your campaign emails are sent:
Sending Window — Set the start and end hours for email delivery:
- Default: 9 AM to 5 PM (business hours)
- Supports overnight windows (e.g., 10 PM to 6 AM) for different regions
- If start equals end, the window is 24 hours (always open)
Timezone — All scheduling is timezone-aware using IANA timezone strings (e.g., 'America/New_York', 'Europe/London'). Emails are sent during business hours in the recipient's timezone if you set it correctly. New campaigns start in your workspace time zone (Settings → Workspace), and you can change it on each campaign.
Active Days — Choose which days of the week to send:
- Default: Monday through Friday (weekdays)
- You can enable weekend sending for certain industries
- Uses 0=Sunday through 6=Saturday notation
- The campaign page always shows the days your campaign really sends on, whether you picked them here or your AI agent set them for you. An agent can name the days ("mon", "tuesday") or use the numbers above, where 0 is Sunday
How Scheduling Works:
- When a prospect is ready for their next step, the system calculates the scheduled send time (step delay + random jitter)
- If the scheduled time falls outside your sending window or on an inactive day, it automatically advances to the next valid time
- The system scans up to 8 days ahead to find the next valid slot
- Random jitter (1-5 minutes) is added between individual sends to avoid pattern detection
Best Practices:
- Send during your prospect's business hours, not yours
- Tuesday through Thursday typically have the highest open rates
- Avoid Monday mornings (inbox overload) and Friday afternoons (weekend mindset)
- Morning sends (8-10 AM local time) tend to perform best