On 2016-02-24 13:46 , Igor PDML-StR wrote:
[Geek_Language On] When that happen, the headers of the message would have lines as these three:MIME-Version: 1.0 Content-Type: multipart/mixed; BOUNDARY="518673661-1546572836-1455812812=:60197" .... And then the body of the message would be starting with: --518673661-1546572836-1455812812=:60197 Content-Type: text/plain; FORMAT=flowed; CHARSET=UTF-8 Content-Transfer-Encoding: 8BIT
yes, any multipart message will probably trigger the current PDML mailserver filters; one must avoid multipart in the current regime
the ideal behavior would be to have the mail server decompose the multipart message and send only the part indicated text/plain (such parts, for those who are not familiar, are delineated by the lines starting with two hyphens)
Unicode should not be a factor — a good email client should not switch from plain text to multipart just because you paste in a Unicode character; i use UTF-8 all the time in my messages — em and en dashes (– —), mu (µ), bullets (•), a few others — and Thunderbird sends plain text only
however you may not realize when you copy/paste from a web page (at least on Mac) the paste buffer includes formatting in addition to the text, and some mail clients will attempt to stuff that formatting into your email message, even if there is no visible difference; in some apps there is a "paste plain" command; some others have a two-step undo from the paste, where the first undo removes the formatting, the second removes the text; when neither of these are possible, on Macs a one-line AppleScript can be triggered from a keyboard to strip formatting from the paste buffer command before pasting
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