A practical example
Example: a B2B team sends the same webinar invitation through two platforms. On one, 40% of messages route to spam for Microsoft 365 recipients; on the other, placement is healthy.
Same content, same list, different infrastructure and reputation handling.
What to evaluate before investing
- Ask vendors how they handle dedicated versus shared sending IPs and what isolation exists between tenants
- Verify support for SPF, DKIM and DMARC setup, including guided configuration and monitoring alerts
- Request evidence of inbox placement testing or reporting, and how bounce and complaint data feed back into sending behavior
Limitations and tradeoffs
Deliverability is shared responsibility: platform infrastructure helps, but list quality, content and sending frequency from your side carry major weight.
Plan your next step with MeshLine
Connect this decision to your automation, organic marketing and customer lifecycle management. In a MeshLine demo, discuss your existing tools, the scope you need and how to measure the result.