When CMN Mail Connector generates an Active Mail message, some changes may applied to original message.
Description of changes are written in "Changes:" section of the log entry in this format:
[Example]
2016-10-17 11:45:21,949 INFO logging [Proxy 1] - Message…(omitted)…Changes: ActiveMailHotspotProcessed, ActiveMailRemovedExtraneousAttachment, ActiveMailRichMarkupProcessed, HtmlInsertedMessageHelp, MimeModified, MimeModifiedCharSet, MimeModifiedText