Collaboration platform administration

This platform holds most of the organization's unstructured information and nearly all of its external communication. It is usually configured once during migration, by whoever ran the migration, and then never revisited.

Get mail authentication right, and keep it right

SPF, DKIM and DMARC together determine whether your mail is delivered and whether someone else can send as you. All three need to exist and agree.

• SPF breaks quietly as third-party senders accumulate — marketing platforms, ticketing systems, invoicing tools — and has a hard limit on lookups that a growing list eventually crosses.
• DKIM has to be enabled per sending domain and per service, not once for the tenant.
• DMARC starts in monitoring and only protects once it moves to enforcement. A policy left at none for two years is a report nobody reads.