Legal proof of delivery

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.”

What is Certified Email and How Does it Work?

April 27, 2026 / in Blog / by Zafar Khan, RPost CEO

Registered Email Adds Legal Proof to Every Sent Message.

Is your regular email enough for matters in court, compliance, or a high-stakes transaction? Until you have to answer the key question: Can you actually prove what was sent, when, and to whom?
 

“What is Legal Proof? An Email Record that Serves as an Evidence!”

October 09, 2020 / in Blog / by Zafar Khan, RPost CEO

What is “Legal Proof”? Optimize! Panelists Share a Decade of Use in Courts In the early 2000’s, RPost coined the term “Legal Proof®” to describe what one received when they sent a Registered Email™ message. There is no such thing as “Illegal Proof”, so what could “Legal Proof®” really represent?

Reduce Paperwork and Other Costs While Speeding Deal Closing Time

November 24, 2010 / in Blog / by Zafar Khan, RPost CEO

Factoring and commercial finance firms worldwide are gaining an edge by going paperless, but not without first managing the risks of standard email.