diff --git a/test/fixtures/mail_handler/apple_mail_with_attachment.eml:OECustomProperty b/test/fixtures/mail_handler/apple_mail_with_attachment.eml:OECustomProperty
new file mode 100644
index 0000000..ab5e577
Binary files /dev/null and b/test/fixtures/mail_handler/apple_mail_with_attachment.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/body_ks_c_5601-1987.eml:OECustomProperty b/test/fixtures/mail_handler/body_ks_c_5601-1987.eml:OECustomProperty
new file mode 100644
index 0000000..e130e70
Binary files /dev/null and b/test/fixtures/mail_handler/body_ks_c_5601-1987.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/different_contents_in_text_and_html.eml:OECustomProperty b/test/fixtures/mail_handler/different_contents_in_text_and_html.eml:OECustomProperty
new file mode 100644
index 0000000..a996244
Binary files /dev/null and b/test/fixtures/mail_handler/different_contents_in_text_and_html.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/empty_text_and_html_part.eml:OECustomProperty b/test/fixtures/mail_handler/empty_text_and_html_part.eml:OECustomProperty
new file mode 100644
index 0000000..beeade2
Binary files /dev/null and b/test/fixtures/mail_handler/empty_text_and_html_part.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/empty_text_part.eml:OECustomProperty b/test/fixtures/mail_handler/empty_text_part.eml:OECustomProperty
new file mode 100644
index 0000000..beeade2
Binary files /dev/null and b/test/fixtures/mail_handler/empty_text_part.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/fullname_of_sender_as_utf8_encoded.eml:OECustomProperty b/test/fixtures/mail_handler/fullname_of_sender_as_utf8_encoded.eml:OECustomProperty
new file mode 100644
index 0000000..931e723
Binary files /dev/null and b/test/fixtures/mail_handler/fullname_of_sender_as_utf8_encoded.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/fullname_of_sender_in_parentheses.eml:OECustomProperty b/test/fixtures/mail_handler/fullname_of_sender_in_parentheses.eml:OECustomProperty
new file mode 100644
index 0000000..f446fe6
Binary files /dev/null and b/test/fixtures/mail_handler/fullname_of_sender_in_parentheses.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/gmail-iso8859-2.eml:OECustomProperty b/test/fixtures/mail_handler/gmail-iso8859-2.eml:OECustomProperty
new file mode 100644
index 0000000..16af405
Binary files /dev/null and b/test/fixtures/mail_handler/gmail-iso8859-2.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/gmail_with_attachment_iso-8859-1.eml:OECustomProperty b/test/fixtures/mail_handler/gmail_with_attachment_iso-8859-1.eml:OECustomProperty
new file mode 100644
index 0000000..bf05fda
Binary files /dev/null and b/test/fixtures/mail_handler/gmail_with_attachment_iso-8859-1.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/gmail_with_attachment_ja.eml:OECustomProperty b/test/fixtures/mail_handler/gmail_with_attachment_ja.eml:OECustomProperty
new file mode 100644
index 0000000..5fe4edb
Binary files /dev/null and b/test/fixtures/mail_handler/gmail_with_attachment_ja.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/invalid_utf8.eml:OECustomProperty b/test/fixtures/mail_handler/invalid_utf8.eml:OECustomProperty
new file mode 100644
index 0000000..e130e70
Binary files /dev/null and b/test/fixtures/mail_handler/invalid_utf8.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/issue_update_with_cc.eml:OECustomProperty b/test/fixtures/mail_handler/issue_update_with_cc.eml:OECustomProperty
new file mode 100644
index 0000000..cd55e97
Binary files /dev/null and b/test/fixtures/mail_handler/issue_update_with_cc.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/issue_update_with_multiple_quoted_reply_above.eml:OECustomProperty b/test/fixtures/mail_handler/issue_update_with_multiple_quoted_reply_above.eml:OECustomProperty
new file mode 100644
index 0000000..efe7994
Binary files /dev/null and b/test/fixtures/mail_handler/issue_update_with_multiple_quoted_reply_above.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/issue_update_with_quoted_reply_above.eml:OECustomProperty b/test/fixtures/mail_handler/issue_update_with_quoted_reply_above.eml:OECustomProperty
new file mode 100644
index 0000000..efe7994
Binary files /dev/null and b/test/fixtures/mail_handler/issue_update_with_quoted_reply_above.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/japanese_keywords_iso_2022_jp.eml:OECustomProperty b/test/fixtures/mail_handler/japanese_keywords_iso_2022_jp.eml:OECustomProperty
new file mode 100644
index 0000000..18d811a
Binary files /dev/null and b/test/fixtures/mail_handler/japanese_keywords_iso_2022_jp.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/message_reply.eml:OECustomProperty b/test/fixtures/mail_handler/message_reply.eml:OECustomProperty
new file mode 100644
index 0000000..d498062
Binary files /dev/null and b/test/fixtures/mail_handler/message_reply.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/message_reply_by_subject.eml:OECustomProperty b/test/fixtures/mail_handler/message_reply_by_subject.eml:OECustomProperty
new file mode 100644
index 0000000..f311085
Binary files /dev/null and b/test/fixtures/mail_handler/message_reply_by_subject.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/multiple_text_parts.eml:OECustomProperty b/test/fixtures/mail_handler/multiple_text_parts.eml:OECustomProperty
new file mode 100644
index 0000000..a6ef4e7
Binary files /dev/null and b/test/fixtures/mail_handler/multiple_text_parts.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/no_subject_header.eml:OECustomProperty b/test/fixtures/mail_handler/no_subject_header.eml:OECustomProperty
new file mode 100644
index 0000000..6454cdd
Binary files /dev/null and b/test/fixtures/mail_handler/no_subject_header.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/outlook_2010_html_only.eml:OECustomProperty b/test/fixtures/mail_handler/outlook_2010_html_only.eml:OECustomProperty
new file mode 100644
index 0000000..93ccf39
Binary files /dev/null and b/test/fixtures/mail_handler/outlook_2010_html_only.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/outlook_web_access_2010_html_only.eml:OECustomProperty b/test/fixtures/mail_handler/outlook_web_access_2010_html_only.eml:OECustomProperty
new file mode 100644
index 0000000..1aecfa1
Binary files /dev/null and b/test/fixtures/mail_handler/outlook_web_access_2010_html_only.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/quoted_printable_utf8.eml:OECustomProperty b/test/fixtures/mail_handler/quoted_printable_utf8.eml:OECustomProperty
new file mode 100644
index 0000000..50b2188
Binary files /dev/null and b/test/fixtures/mail_handler/quoted_printable_utf8.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/subject_as_iso-8859-1.eml:OECustomProperty b/test/fixtures/mail_handler/subject_as_iso-8859-1.eml:OECustomProperty
new file mode 100644
index 0000000..38f1bf7
Binary files /dev/null and b/test/fixtures/mail_handler/subject_as_iso-8859-1.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/subject_japanese_1.eml:OECustomProperty b/test/fixtures/mail_handler/subject_japanese_1.eml:OECustomProperty
new file mode 100644
index 0000000..82fe630
Binary files /dev/null and b/test/fixtures/mail_handler/subject_japanese_1.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/subject_japanese_2.eml:OECustomProperty b/test/fixtures/mail_handler/subject_japanese_2.eml:OECustomProperty
new file mode 100644
index 0000000..f9021c5
Binary files /dev/null and b/test/fixtures/mail_handler/subject_japanese_2.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/subject_japanese_3.eml:OECustomProperty b/test/fixtures/mail_handler/subject_japanese_3.eml:OECustomProperty
new file mode 100644
index 0000000..ee5776b
Binary files /dev/null and b/test/fixtures/mail_handler/subject_japanese_3.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/thunderbird_with_attachment_iso-8859-1.eml:OECustomProperty b/test/fixtures/mail_handler/thunderbird_with_attachment_iso-8859-1.eml:OECustomProperty
new file mode 100644
index 0000000..005ba6f
Binary files /dev/null and b/test/fixtures/mail_handler/thunderbird_with_attachment_iso-8859-1.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/thunderbird_with_attachment_ja.eml:OECustomProperty b/test/fixtures/mail_handler/thunderbird_with_attachment_ja.eml:OECustomProperty
new file mode 100644
index 0000000..429653e
Binary files /dev/null and b/test/fixtures/mail_handler/thunderbird_with_attachment_ja.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_by_empty_user.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_by_empty_user.eml:OECustomProperty
new file mode 100644
index 0000000..cec234b
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_by_empty_user.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_by_unknown_user.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_by_unknown_user.eml:OECustomProperty
new file mode 100644
index 0000000..3bc24aa
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_by_unknown_user.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_from_emission_address.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_from_emission_address.eml:OECustomProperty
new file mode 100644
index 0000000..ab5a188
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_from_emission_address.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_html_only.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_html_only.eml:OECustomProperty
new file mode 100644
index 0000000..236ffbd
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_html_only.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_on_given_project.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_on_given_project.eml:OECustomProperty
new file mode 100644
index 0000000..2c3518c
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_on_given_project.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_on_project_given_by_to_header.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_on_project_given_by_to_header.eml:OECustomProperty
new file mode 100644
index 0000000..a17b1e7
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_on_project_given_by_to_header.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_reply.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_reply.eml:OECustomProperty
new file mode 100644
index 0000000..bf937a0
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_reply.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_reply_from_mail.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_reply_from_mail.eml:OECustomProperty
new file mode 100644
index 0000000..094c85b
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_reply_from_mail.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_reply_with_status.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_reply_with_status.eml:OECustomProperty
new file mode 100644
index 0000000..f298aea
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_reply_with_status.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_attachment.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_attachment.eml:OECustomProperty
new file mode 100644
index 0000000..7e04492
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_attachment.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_attributes.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_attributes.eml:OECustomProperty
new file mode 100644
index 0000000..c538af9
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_attributes.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_cc.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_cc.eml:OECustomProperty
new file mode 100644
index 0000000..e641c89
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_cc.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_custom_fields.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_custom_fields.eml:OECustomProperty
new file mode 100644
index 0000000..28b52c9
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_custom_fields.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_duplicate_keyword.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_duplicate_keyword.eml:OECustomProperty
new file mode 100644
index 0000000..2c3518c
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_duplicate_keyword.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_empty_attachment.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_empty_attachment.eml:OECustomProperty
new file mode 100644
index 0000000..7e04492
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_empty_attachment.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_invalid_attributes.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_invalid_attributes.eml:OECustomProperty
new file mode 100644
index 0000000..c538af9
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_invalid_attributes.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_keyword_after_delimiter.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_keyword_after_delimiter.eml:OECustomProperty
new file mode 100644
index 0000000..2c3518c
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_keyword_after_delimiter.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_localized_attributes.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_localized_attributes.eml:OECustomProperty
new file mode 100644
index 0000000..c538af9
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_localized_attributes.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_localized_private_flag.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_localized_private_flag.eml:OECustomProperty
new file mode 100644
index 0000000..c538af9
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_localized_private_flag.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_long_subject.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_long_subject.eml:OECustomProperty
new file mode 100644
index 0000000..e2ea1a0
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_long_subject.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_spaces_between_attribute_and_separator.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_spaces_between_attribute_and_separator.eml:OECustomProperty
new file mode 100644
index 0000000..c538af9
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_spaces_between_attribute_and_separator.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_with_text_attachment_iso-8859-2.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_with_text_attachment_iso-8859-2.eml:OECustomProperty
new file mode 100644
index 0000000..244a4f7
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_with_text_attachment_iso-8859-2.eml:OECustomProperty differ
diff --git a/test/fixtures/mail_handler/ticket_without_from_header.eml:OECustomProperty b/test/fixtures/mail_handler/ticket_without_from_header.eml:OECustomProperty
new file mode 100644
index 0000000..8c14acc
Binary files /dev/null and b/test/fixtures/mail_handler/ticket_without_from_header.eml:OECustomProperty differ