Proof of delivery

Registered Email Explained for Business Use

June 09, 2026 / in Blog / by Zafar Khan, RPost CEO

A Practical Guide to Stronger Proof for Important Business Emails.

Standard email works well for everyday communication as it’s fast, familiar, and easy to send from tools (Outlook, Gmail, etc.) that people already use. The challenge comes when the email is later used as evidence.

How to Send a Certified Email for Legal Proof

May 15, 2026 / in Blog / by Zafar Khan, RPost CEO

Certified Email Adds Proof of Sending, Delivery, and Content.

When an email carries legal, financial, contractual, or compliance weight, “I sent it” is rarely enough. A standard sent-folder copy, read receipt, or screenshot may not help you prove delivery, timing, or exact content if the recipient later says, “I never got it,” or “that was not what you sent.”

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.

Advanced Email Security, Requiring Smarter Email Delivery Systems for Important Email

April 22, 2019 / in Blog / by Zafar Khan, RPost CEO

Not All Email Tracking is Created Equal If you are sending a zillion newsletter or marketing emails, sure, email marketing platforms make it easy to manage your email list; and many do provide some basic tracking information.

With Registered Email, You Can Prove the Content in the Message

February 16, 2018 / in Blog / by Zafar Khan, RPost CEO

Can You Put A Monetary Value on Proof? “It’s Worth At Least A Million Dollars.” According to One Relieved RMail Customer While it’s very common to hear from attorneys and law firms who use RMail for their high-profile cases in district and circuit courts, here we share a story from one RMail user, where the […]