Swift_Bug34Test testEmbeddedFilesWithMultipartDataCreateMultipartRelatedContentAsAnAlternative Pattern [~^Sender: Other <other@domain.tld> Message-ID: <3de546c548bf5f0b29b676069b4958f9@app.abcservicescheltenham.co.uk> Date: Mon, 28 Sep 2026 13\:35\:42 \+1000 Subject: test subject From: Other <other@domain.tld> To: User <user@domain.tld> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="_=_swift_v4_1790566542_d190930d3a4c8b54fee87b5e37a76148_=_" --_=_swift_v4_1790566542_d190930d3a4c8b54fee87b5e37a76148_=_ Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable plain part --_=_swift_v4_1790566542_d190930d3a4c8b54fee87b5e37a76148_=_ Content-Type: multipart/related; boundary="(.*?)" --\1 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <img.*?/> --\1 Content-Type: image/gif; name=image.gif Content-Transfer-Encoding: base64 Content-Disposition: inline; filename=image.gif Content-ID: <4221d2b252f736a21e774e1f0f602ca4@app.abcservicescheltenham.co.uk> PGltYWdlIGRhdGE\+ --\1-- --_=_swift_v4_1790566542_d190930d3a4c8b54fee87b5e37a76148_=_-- $~D] not detected in [String: Sender: Other <other@domain.tld> Message-ID: <3de546c548bf5f0b29b676069b4958f9@app.abcservicescheltenham.co.uk> Date: Mon, 28 Sep 2026 13:35:42 +1000 Subject: test subject From: Other <other@domai...] at [/home/abcservices/app.abcservicescheltenham.co.uk/lib/swift/tests/bug/Swift/Bug34Test.php line 34]