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I'm sending an email newsletter that contains Unicode characters - curly quotes, em dashes, and so on. When I send the newsletter to myself (from our custom content management system, to my account at Gmail) and then read the message in Apple Mail, the Unicode characters come through properly when Mail is set to Automatic in Message > Text Encoding, as they should given our Content-Type headers (for appropriate editions of the newsletter):

Content-Type: text/plain; charset="utf-8"
Content-Type: text/html; charset="utf-8"

However, for a small number of people, including one who is also using Gmail (so the same receiving server), the Unicode characters are munged when Automatic is selected. If the message text encoding is changed to UTF-8, it works fine.

So what is it about Apple Mail, receiving the same message on the same server, that could result the automatic text encoding detection failing to pick up UTF-8 for the other person?

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After a year with no further input from the op or anyone else it seems kind of pointless to keep bringing this to the top of the list every so often. –  Tom Gewecke Dec 9 '12 at 21:40
@TomGewecke this is done by an automatic task hat searches for unanswered questions –  Mark Jan 10 '13 at 12:21
@Mark Still it seems like that "task" should be programmable to omit things without responses for a year. –  Tom Gewecke Jan 10 '13 at 13:00
@TomGewecke - I think this raising is exactly what it is programmed to do see MetaSO questions - partially to allow votes for closing if the question is bad - in this case not responding to your answer makes me think this is NARQ as not enough info –  Mark Jan 10 '13 at 13:13
However noone else seems to agree with my vote to close as t comes around again –  Mark Jun 30 '13 at 14:29
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1 Answer

The settings in Mail whether automatic or UTF-8 should not make any difference if the encoding headers in the source are correct. Ask someone for whom the display is incorrect to do View > Message > Raw Source and send it to you so you can compare it to the same thing on your machine to see if in fact they are identical or not.

Also you should provide info regarding the versions of Mail being used in the two cases.

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