·If “Generate hash value from:” is set to Original SMTP header then the headers of both emails must match in their entirety for them to be considered duplicates.
·If “Generate hash value from:” is set to Message-ID header field, only the Message-ID fields need to match for the emails to qualify as duplicates. In cases where the Message-ID is empty or missing, as is often the case in outbound messages, Aid4Mail compares the From, Date and Subject header fields instead.
By default, Aid4Mail only identifies duplicates that are in the same source folder. However you can widen the scope to detect duplicates wherever they are located in the mailbox. This is done through the “Duplicates detection scope” option under the Filters tab of the App settings.
If you experience any issues, please don’t hesitate to contact us.
If you would like to buy an Aid4Mail license, please visit the Aid4Mail website.