How signing reminders work

Automatic reminders are off by default. If you have not enabled them, zSign sends the initial signing invitation and nothing further — chasing is yours to do.

The first automatic nudge waits 72 hours. When automatic reminders are on, the scheduled job does not follow the invite. It waits REMINDER_DELAY_HOURS after the recipient's created_at — 72 hours — before that first automatic reminder.

Only the first manual reminder is immediate. There is no waiting period before it. If someone has gone quiet and you want to nudge them now, you can.

The limits, which apply to automatic and manual reminders alike:

• At most one reminder per 72 hours, measured from the last reminder sent to that recipient. That spacing does not delay the first manual reminder. It does delay the first automatic one, which waits the same 72 hours after created_at.
• A maximum of 2 reminders per recipient, ever. Not per week — ever.
• Reminders only go to recipients who have not signed and have not declined.
• Envelopes sent with send_invite: false refuse reminders. zSign never emailed the invitation, so it does not send the follow-up either — whoever owns delivery owns chasing. An API caller can override this per request.

If you try to send a manual reminder inside the 72-hour window or after the cap, zSign refuses and names the limit you hit. This is deliberate: signature reminders that turn into a drip campaign get the whole sending domain marked as spam, which hurts every customer.

Once a recipient is out of reminders, contact them yourself.