email security

What Counts as Proof an Email Was Sent, Delivered, Opened, and Read?

September 04, 2026 / in Blog / by Zafar Khan, RPost CEO

Proof an Email Was Sent vs. Proof It Was Delivered.

When an important email becomes part of a dispute, regularly used phrases like “I sent it” or “I received it” can mean very different things. A sent folder may show that a sender clicked Send, an email delivery receipt may indicate that a mail system accepted a message, email open tracking may record an interaction with the message, and an email read receipt may suggest that a recipient’s email client reported it as opened.

How to Prove Email Delivery & Replies: Solving the ‘I Didn't Get the Email’ Excuse

February 25, 2025 / in Blog / by Zafar Khan, RPost CEO

What May Seem Like a DOGE Dodge -- “I Didn’t Get the Email”—May Be a Legit Technical Issue.

Armand here, RPost’s product evangelist armadillo. Since I am apolitical, I thought I would opine on only the technology that DOGE appears to be using via the US Office of Personnel Management (OPM) to send notices to Federal employees across various departments, agencies and entities, and common misconceptions related to email delivery.

Proper Look/Design of Email Emphasizes the Importance of Message

August 30, 2021 / in Blog / by Zafar Khan, RPost CEO

Your Emails Don’t Need to Wear Masks with Registered Email™ Message In places where there are indoor mask mandates like where I live in California there is the phenomenon now of loud talking. What used to be the punchline of a Seinfeld episode is now very much the reality for millions of people here in […]