Date: Mon, 22 Feb 2021 11:12:12 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 253759] send mail does not quote GECOS information for From header Message-ID: <bug-253759-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253759 Bug ID: 253759 Summary: send mail does not quote GECOS information for From header Product: Base System Version: 12.2-STABLE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: michael.osipov@siemens.com My GECOS field contains the following data: "LDA CaFE (DW) Service User Adm= in" The sendmail is used to send e-mails. The "From:" is constructed literally: "LDA CaFE (DW) Service User Admin <root>" and delivered via SMART_HOST but = the parentheses never arrive at the target. When looking at rfc5322#section-3.2.3 the situation is quite clear: "(" and= ")" are part of the specials production therefore section 3.2.4 says that the display-name must be quoted to avoid interpretations on the server side. The request is either to test GECOS for these special chars or simply always quote GECOS information to avoid the loss of information. Snippet from truss: ?Date: Mon, 22 Feb 2021 11:40:38 +0100 (CET)\nH?F?From: LDA CaFE (DW) Servi= ce User Admin <root>\nH?x?Full-Name: L --=20 You are receiving this mail because: You are the assignee for the bug.=
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