Gmail

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.”

“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?

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.

Claim Denied Due to Missing Email

October 06, 2016 / in Blog / by Zafar Khan, RPost CEO

At Frankel Insurance, staff sent an email to bind additional commercial property to an existing policy. Later, a claim was submitted to the insurance carrier, and the carrier denied having a record of the additional property having been added to the policy.