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**Category:** Factual Questions\
**Created:** [September 11, 2001, 12:21am UTC](https://boards.straightdope.com/t/html-mailto-question/80783 "2001-09-11T00:21:51Z")\
**Posts on this page:** 5\
**Page:** 1
**Author:**  [@LifeWillFall](https://boards.straightdope.com/u/LifeWillFall)\
**Post date:** [September 11, 2001, 12:21am UTC](https://boards.straightdope.com/t/html-mailto-question/80783/1 "2001-09-11T00:21:51Z")
Is there some way to make the mailto tag automatically add a subject line of my choice when someone clicks that link. For Example: Joe Schmoe comes to my web site and clicks the “Email me” button and an E-mail window pops up with my E-mail address and the subject line already filled out?
sorry if this can be found with a web search, I looked, but found it had to sort out.
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**Author:**  [@ZipperJJ](https://boards.straightdope.com/u/ZipperJJ)\
**Post date:** [September 11, 2001, 12:22am UTC](https://boards.straightdope.com/t/html-mailto-question/80783/2 "2001-09-11T00:22:46Z")
a [href=mailto:bob@bob.com](mailto:href=mailto:bob@bob.com)?subject=Hi bob
there you go!
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**Author:**  [@friedo](https://boards.straightdope.com/u/friedo)\
**Post date:** [September 11, 2001, 12:28am UTC](https://boards.straightdope.com/t/html-mailto-question/80783/3 "2001-09-11T00:28:57Z")
If you want spaces in the subject you should properly HTML-escape them just to ensure browser compatibility.
Thus:
\
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**Author:**  [@friedo](https://boards.straightdope.com/u/friedo)\
**Post date:** [September 11, 2001, 12:30am UTC](https://boards.straightdope.com/t/html-mailto-question/80783/4 "2001-09-11T00:30:13Z")
Also note that not all browsers/email clients support the ?subject= syntax.
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**Author:**  [@xash](https://boards.straightdope.com/u/xash)\
**Post date:** [September 11, 2001, 12:41am UTC](https://boards.straightdope.com/t/html-mailto-question/80783/5 "2001-09-11T00:41:04Z")
you can even create a pre-typed body affixing &body=
requiring the user to click only the send button, with the whole email pre-typed…
e.g. \