Unless the signer's email provider flags any signature reminders as SPAM, the eSignAnyWhere (eSAW) service allows you to only send reminders once 12 hours have elapsed from the time the envelope was sent to the signers or from the previous reminder; otherwise, the error acknowledgement is returned: "1 reminder(s) have not been sent due to reaching the maximum frequency limit. 0 reminder(s) were not sent due to emails being disabled in the settings".