diff --git a/templateparser/autotests/data/404698-gpg.mbox b/templateparser/autotests/data/404698-gpg.mbox
new file mode 100644
--- /dev/null
+++ b/templateparser/autotests/data/404698-gpg.mbox
@@ -0,0 +1,120 @@
+Subject: Testcase 'reply-mix-crlf' (PGP/MIME)
+To: brucewayne45@web.de
+From: brucewayne45@web.de
+MIME-Version: 1.0
+Content-Type: multipart/mixed; boundary="BOUNDARY"
+
+--BOUNDARY
+Content-Type: text/plain
+
+Please reply to this message
+.
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+--BOUNDARY
+Content-Type: multipart/encrypted; protocol="application/pgp-encrypted"; boundary="DELIMITER"
+
+--DELIMITER
+Content-Type: application/pgp-encrypted
+
+Version: 1
+
+--DELIMITER
+Content-Type: application/octet-stream; name="encrypted.asc"
+Content-Disposition: inline; filename="encrypted.asc"
+
+-----BEGIN PGP MESSAGE-----
+Version: GnuPG v1
+
+hIwDGJlthTT7oq0BA/9NtLLXbiIJVS6pOynwEeSznrQK7kYVla8RM43//JECCkGJ
+azEaSBznabBv6epaFmQtVHLMXlCbZnMmW9loyqPBfMoAms6kKKBdG/jqhus89iXE
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+udKWmfLBlxn06p+JDzUKxj8PFwObdbxTvACzbAvBY1aHMQ==
+=mLl3
+-----END PGP MESSAGE-----
+
+
+--DELIMITER--
+
+--BOUNDARY
+
+--BOUNDARY
+Content-Type: multipart/encrypted; protocol="application/pgp-encrypted"; boundary="DELIMITER"
+
+--DELIMITER
+Content-Type: application/pgp-encrypted
+
+Version: 1
+
+--DELIMITER
+Content-Type: application/octet-stream; name="encrypted.asc"
+Content-Disposition: inline; filename="encrypted.asc"
+
+-----BEGIN PGP MESSAGE-----
+Version: GnuPG v2.0.15 (GNU/Linux)
+
+hQEMAwzOQ1qnzNo7AQgAtWfDWWI2JUGuptpackiIxpWViEEpGAeruETubiIPwxNb
+DNmXrMDhbm/zIbPntIGWJDgUMfABZCUgmlJLWhsceDTt+tXnWGha2VYrN2/WsF6/
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+Vg0nNCZRBauEqIESEW5EV2zrJqdfNYcz+f9IP125dnQEKgLZ6FxTt3+v
+=mhNl
+-----END PGP MESSAGE-----
+
+--DELIMITER--
diff --git a/templateparser/autotests/data/404698-gpg.mbox.plain.reply b/templateparser/autotests/data/404698-gpg.mbox.plain.reply
new file mode 100644
--- /dev/null
+++ b/templateparser/autotests/data/404698-gpg.mbox.plain.reply
@@ -0,0 +1,51 @@
+Please reply to this message
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diff --git a/templateparser/autotests/data/404698-smime.mbox b/templateparser/autotests/data/404698-smime.mbox
new file mode 100644
--- /dev/null
+++ b/templateparser/autotests/data/404698-smime.mbox
@@ -0,0 +1,88 @@
+Subject: Testcase 'reply-mix-crlf' (S/MIME)
+To: brucewayne45@web.de
+From: brucewayne45@web.de
+MIME-Version: 1.0
+Content-Type: multipart/mixed; boundary="BOUNDARY"
+
+--BOUNDARY
+Content-Type: text/plain
+
+Please reply to this message
+.
+.
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+.
+.
+
+--BOUNDARY
+Content-Type: application/pkcs7-mime; name="smime.p7m"; smime-type=enveloped-data
+Content-Transfer-Encoding: base64
+
+MIAGCSqGSIb3DQEHA6CAMIACAQAxgfwwgfkCAQAwYjBVMQswCQYDVQQGEwJVUzENMAsGA1UECgwE
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+
+--BOUNDARY
+Content-Type: application/pkcs7-mime; name="smime.p7m"; smime-type=enveloped-data
+Content-Transfer-Encoding: base64
+
+MIAGCSqGSIb3DQEHA6CAMIACAQAxgfwwgfkCAQAwYjBVMQswCQYDVQQGEwJVUzENMAsGA1UECgwE
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+o5HCOmjiEcInyPf14lL3HnPk10FaP3hh58qTHUh4LPYtL7UECOZELYnUfUVhAAAAAAAAAAAAAA==
+
+--BOUNDARY--
diff --git a/templateparser/autotests/data/404698-smime.mbox.plain.reply b/templateparser/autotests/data/404698-smime.mbox.plain.reply
new file mode 100644
--- /dev/null
+++ b/templateparser/autotests/data/404698-smime.mbox.plain.reply
@@ -0,0 +1,51 @@
+Please reply to this message
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