When viewing a Russian language message in the Messaging Gateway (SMG) Message Audit Logs (MAL) the message subject line may be truncated and display an incorrect letter at the end of the line. Hovering the mouse cursor over the message, however, displays the correct subject line.
Email message Subject lines that do not use the ASCII character set are encoded as a UTF-8 string similar to the following.
Subject: =?UTF-8?B?0Y3RgtC+INGC0LXQv9C70L4g0YHQtdCz0L7QtNC90Y8h?=
When converting this UTF-8 string to an HTML equivalent, the trailing HTML entity can be cut off in the wrong place resulting in the displayed subject line being abbreviated and the final characters presented incorrectly.