Several factors contribute to timeline discrepancies in email marketing:
1. Time Zones: Emails are sent to recipients in different time zones, leading to variations in when emails are received and opened. 2. Server Delays: Email servers might experience delays due to high traffic or technical issues. 3. ESP Scheduling: Scheduling features in Email Service Providers (ESPs) may not always align perfectly with the intended send time. 4. Recipient Behavior: Users open emails at different times based on their personal schedules and habits.