Summary

To send an email with a formula, you can build a "mailto:" link with the HYPERLINK function. In the example shown, the formula in G5 is:

=HYPERLINK("mailto:"&C5&"?"
&"cc="&D5
&"&subject="&E5
&"&body="&F5,
"link")

When the link is clicked in Excel, the default email client will create a new email with the information supplied. The link text ("link") can be customized as desired.

Note: the formula above is entered with line breaks for better readability.

Mailto link protocol

The mailto link protocol allows five variables as shown in the table below:

Variable Purpose
mailto: The primary recipient(s)
&cc= The CC recipient(s)
&bcc= The BCC recipient(s)
&subject= The email subject text
&body= The email body text

Notes: (1) separate multiple email addresses with commas. (2) Not all variables are required.

The variables are presented as "query string parameters", delimited with the ampersand (?) character. For example, a fully formed mailto: link in an HTML document might appear like this:

Example mailto link

When a user click the link text, the default email application opens a new email with the variables filled in.

Generic formula

=HYPERLINK("mailto:"&email&"?"
&"cc="&cc
&"&subject="&subject
&"&body="&body,
"link text")

Explanation 

In Excel, the HYPERLINK function can be used to create links. The basic syntax is:

=HYPERLINK("link","link text")

The link itself is a text string that represents a valid link. The link text (called "friendly name" in Excel) is the text displayed to a user.

Ultimately, the goal for the formula in G5 is to build a string like this:

mailto:aya@aa.com?cc=bb@bb.com&subject=subject&body=body

Because the mailto link use several pieces of information, it must be assembled with concatenation.

The formula is bit tricky. While the ampersand is the operator for concatenation in Excel, it is also used to delimit the mailto link parameters (cc, bcc, subject, etc.). This means that some ampersands (&) are used to join text in the formula, and some are embedded in the final result. In the code below, the ampersands in yellow are used for concatenation in Excel. The white ampersands are embedded in the final result:

=HYPERLINK("mailto:"&C5&"?"
    &"cc="&D5
    &"&subject="&E5
    &"&body="&F5,
    "link")

Empty mailto parameters

For the sake of simplicity, the formula above does not try to exclude empty parameters from the final result. In quick testing with Gmail and Outlook, missing parameters seem to be handled ignored gracefully. The behavior of other email applications may vary.

Related functions

Excel HYPERLINK function

HYPERLINK Function

The Excel HYPERLINK function returns a hyperlink from a given destination and link text. You can use HYPERLINK to create a clickable hyperlink with a formula. The HYPERLINK function can build links to workbook locations, pages on the internet, or to files on network servers....
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Dave Bruns

Hi - I'm Dave Bruns, and I run Exceljet with my wife, Lisa. Our goal is to help you work faster in Excel. We create short videos, and clear examples of formulas, functions, pivot tables, conditional formatting, and charts.

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