When attempting to submit a spam false positive sample via the portal, you receive one of the following error messages:

ClientNet

• The False Positive submission portal only allows samples in message/rfc822 format in an .eml or .msg file type. Any other format submission to the portal is rejected.
• The sample you have submitted is over 5MB in size. The False Positive Submission Portal will only allow submissions under 5MB.

When submitting a sample for investigation

• Ensure any sample that is submitted meets the message/rfc822 standard and is in either a .msg or .eml format.
• Any sample over 5MB in size must be submitted the alternative submission method.