Hello, Heiko Schlittermann <[email protected]> (Mo 08 Apr 2013 10:33:25 CEST): … > we got problems with the header syntax check: > > failed: To: =?ISO-8859-1?Q?=22H=E4le,_Anita=22?= <[email protected]> > passed: To: =?ISO-8859-1?Q?=22H=E4le=2C_Anita=22?= <[email protected]> … > Is there some document describing the correct parsing of such header > lines? In RFC5322 (internet message format) and RFC 2045 (MIME > extensions) I do not find anything that could point me to some answer. > > Is it Exims fault? Should/could Exim be more liberal? Or is it the fault > of the MUA generating the failing line?
My co-worker got it: http://tools.ietf.org/html/rfc2047#section-5, subsection (3): (3) As a replacement for a 'word' entity within a 'phrase', for example, one that precedes an address in a From, To, or Cc header. The ABNF definition for 'phrase' from RFC 822 thus becomes: phrase = 1*( encoded-word / word ) In this case the set of characters that may be used in a "Q"-encoded 'encoded-word' is restricted to: <upper and lower case ASCII letters, decimal digits, "!", "*", "+", "-", "/", "=", and "_" (underscore, ASCII 95.)>. An 'encoded-word' that appears within a 'phrase' MUST be separated from any adjacent 'word', 'text' or 'special' by 'linear-white-space'. Thus it "solved", Exim is correct, and it's the fault of the sending MTA. (Un)fortunately this incorrect headers are generated only if two conditions meet: unprintable character, and a comma in the address phrase. In case anybody is interested and for the records - the information about originating MTA: Content-Type: multipart/alternative; boundary=Apple-Mail-25-52899134 Mime-Version: 1.0 (Apple Message framework v936) X-Mailer: Apple Mail (2.936) (Does anybody know where to report this bug?) Best regards from Dresden/Germany Viele Grüße aus Dresden Heiko Schlittermann -- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann, Dipl.-Ing. (TU) - {fon,fax}: +49.351.802998{1,3} - gnupg encrypted messages are welcome --------------- key ID: 7CBF764A - gnupg fingerprint: 9288 F17D BBF9 9625 5ABC 285C 26A9 687E 7CBF 764A - (gnupg fingerprint: 3061 CFBF 2D88 F034 E8D2 7E92 EE4E AC98 48D0 359B)-
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