Domain Reputation: Using multiple sender domains can help mitigate the risk of damaging the reputation of a single domain. If one domain gets flagged for spam or abuse, it won’t affect the deliverability of emails sent from other domains.
Segmentation and Branding: Different sender domains can be used to segment your audience or target different customer segments. For example, you might have one domain for promotional emails, another for transactional emails, and yet another for specific product lines or regions.
Deliverability: Having multiple sender domains can provide flexibility in managing deliverability issues. If you encounter deliverability problems with one domain, you can switch to another domain while you work to resolve the issues.
Testing and Experimentation: Email marketers may use multiple sender domains for A/B testing or experimentation purposes. Testing different sender domains can help identify which domains perform best in terms of deliverability and engagement metrics.
Resource Allocation: Managing multiple sender domains requires additional resources and infrastructure, including domain registration, authentication, monitoring, and maintenance. Consider whether your organization has the resources and expertise to effectively manage multiple sender domains.