HTML: insert line-break in email subject like %20 is a space?

Question

<a href="mailto:office@something.com?subject=Whatever%20this%20is &body=HowcanIaddLine<br/>Break here

I wonder if it is possible to write something like %20 (which stands for a space) for a line-break as well. So I want to have separate lines in my body of the e-mail.

Any ideas?

However, I don't think it's possible to add linebreaks to a mail subject — John Dvorak, Feb 22 '13 at 08:23
Does this answer your question? [Insert a line break in mailto body](https://stackoverflow.com/questions/22765834/insert-a-line-break-in-mailto-body) — jtbandes, Sep 07 '20 at 19:31

score 39 · Accepted Answer · edited Oct 07 '21 at 05:46

39

You should use a carriage return %0D and line feed %0A

<a href="mailto:endpointadress@something.com?cc=endpointadress2@something.com&subject=your subject&body=Text before new line.%0D%0AText after new line.">create email</a>

This is defined in RFC2368 and is the only valid method of generating a line-break.

edited Oct 07 '21 at 05:46

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answered Feb 22 '13 at 08:30

MikroDel

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This doesn't seem to work for gmail.com and its mobile app. Is there anything special that needs to be done for gmail to make the line break work? – Jason O. Aug 15 '15 at 23:22
@JasonO. in gmail for Android you can use my answer – Buddy Christ Apr 13 '20 at 12:14
That's a curious choice to enforce Windows-style line breaks over Unix-style. I wonder what the history behind that is – Post Self Jun 30 '22 at 23:24

score 7 · Answer 2 · edited Oct 07 '21 at 08:46

Replace \n (and \r\n) by %0D%0A as specified by RFC6068 (in section 5) updating the mailto URI Scheme as of October 2010 (replacing RFC2368).

[...] line breaks in the body of a message MUST be encoded with "%0D%0A".
Implementations MAY add a final line break to the body of a message even if there is no trailing "%0D%0A" in the body [...]

This is the example from the RFC (in section 6)

<mailto:infobot@example.com?body=send%20current-issue%0D%0Asend%20index>

The above mail body corresponds to:

send current-issue
send index

HTML: insert line-break in email subject like %20 is a space?

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