Start...
Insert attachment...
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Post headers:
ACCEPT
ACCEPT-ENCODING
ACCEPT-LANGUAGE
CONNECTION
CONTENT-CUSTOM-HEADER
CONTENT-LENGTH
CONTENT-TYPE
CUSTOM-HEADER
HOST
USER-AGENT
X-MESSAGE-SECONDS
Attachment headers:
CONTENT-CUSTOM-HEADER
CONTENT-DISPOSITION
CONTENT-TRANSFER-ENCODING
CONTENT-TYPE
CUSTOM-HEADER
X-MESSAGE-SECONDS
