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have recently told several clients, especially ESP customers, to consider how their consumers or audiences are accepting or receiving their mail. If they notice temp flaws or failures and whether specific mail streams are responsible for these failures. It is largely too early to tell whether this is an effective way to measure deliverability for ESP compliance purposes. However, it is, without doubt, a helpful way of identifying flawed or problematic mail delivery systems or mail streams. It also helps my brand customers in making adjustments to their emails to ensure they get to their clients' inboxes.
What we know for sure is that those of use in the realm of deliverability need to keep continually and consistently innovating mail delivery systems. We need to continue to come up with new and innovative ways of measuring mail deliverability to stay in touch with the updates and changes around us. As mail filters and mail stream services evolve, we must evolve our knowledge and approach too.