on 2013-01-02 14:22 Larry Colen wrote
As I understand it, I guess that some people have a problem with posting a 
plain URL in the email:

http://www.flickr.com/photos/ellarsee/8339725404/

it depends on the URL, and the sender, as well as the recipient; your example is too easy — long URLs or those with certain punctuation may be more problematic, even with angle brackets, for some clients; senders (like you) who do not use format=flowed also increase the odds of a long URL not being sewn back together by the receiving email app (the original purpose of the brackets was to disambiguate multi-line URLs)


So, people have taken to enclosing them in angle brackets:
<http://www.flickr.com/photos/ellarsee/8339725404/>

this practice stems from RFC 1738, "APPENDIX: Recommendations for URLs in Context"; however few email clients are 100% compliant; there are other email practices which i consider more important (e.g. always include plain text version, use format=flowed, use utf-8)

here's a test; sending with format=flowed, the following URL works fine for me when received in Thunderbird 17, Apple Mail 5.3, Gmail (web & iOS app), Fastmail's webmail, and iOS Mail

http://en.wikipedia.org/wiki/Stereophonic_Musical_Listenings_That_Have_Been_Origin_in_Moving_Film_%22Borat:_Cultural_Learnings_of_America_for_Make_Benefit_Glorious_Nation_of_Kazakhstan%22

i'd be interested to know for whom it breaks, and if so, whether the following also breaks:

<http://en.wikipedia.org/wiki/Stereophonic_Musical_Listenings_That_Have_Been_Origin_in_Moving_Film_%22Borat:_Cultural_Learnings_of_America_for_Make_Benefit_Glorious_Nation_of_Kazakhstan%22>

it may be hard to tell if that
if i had sent this without format=flowed, i suspect it would break for more 
clients


which show up in the browser on my phone as
http://www.flickr.com/photos/ellarsee/8339725404/%3e

there's a bug in your email client (or webmail system); also note that many web servers are now stripping a trailing %3E by default, because there are so many broken email clients


with the appended %3e causing file not found errors.  Would it work for people 
who need the angle brackets, if there was a space between the bracket and the 
url, so that the bracket doesn't get parsed as part of the url?
< http://www.flickr.com/photos/ellarsee/8339725404/ >

i wouldn't bother with that; just drop the angle brackets if you don't want certain people with broken email clients to have the problem you are having; but it may (or may not) cause others to have a problem, and it won't change what people send you



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