I am getting issues on a RELAY mail flow policy where messages are being aborted with the error "Message header too big." What is the default limit for message header sizes and how can you change it for particular senders?

I am using edit-body-text to remove particular text from an email. This is partially working but not completely. The text is getting stripped out of the text/plain part of the mail but not out of the txt/html part so unless I send the mail in plain t...

What are the limitations with using edit-body-text if any? I am trying to replace a long piece of text in the body of an email and wondered if there was a limitation in the field length when putting in the first parameter. I am looking to replace the...

I am looking to create a content/message filter that will insert a disclaimer in a mail if the original mail contains an attachment or a URL link. How can I do that?