An effective SLA in email marketing should cover the following aspects:
Deliverability Rates: The percentage of emails that successfully reach the recipients' inboxes. Open and Click-Through Rates: Metrics that measure the engagement level of the recipients. Response Time: The time it takes for the service provider to address client queries or issues. Content Quality: Standards for the quality and relevance of the email content. Compliance: Adherence to regulations such as GDPR and CAN-SPAM Act. Reporting and Analytics: Frequency and format of performance reports.