
How to request read receipts in classic Outlook, new Outlook and Outlook on the web, why they carry no weight in a dispute, and what proves that an email was received instead.

When an email counts as received under German law, why sending alone proves nothing, and which kinds of evidence actually carry the sender's burden of proof.

What a transport agent can do in Exchange Server, how it differs from transport rules and where agents fail in production: critical flag, TNEF, outages and updates.