The proper value missing is in the first line of the header in this example is called:
The following methods may be used as workarounds to this issue:
Method 1: Use only Base64 encoding when composing these RightFax Fax Emails.
Method 2: Add the "charset" parameter in the "Content-Type" mime header for QP encoded messages.
Ensuring these illegal QP encoded headers are not missing will avoid this issue.
Method 3: Do not forward these fax emails with the text files, and only send picture files, or pdf files.
Another workaround to this if changing the encoding type, or modifying the Content-Type fields is not possible is to remove the attachments as they appear and either zip them up, or send them another method.
Imported Document ID: TECH214045
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