Part of header mail create from Microsoft Outlook 16.0
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Content-Type: multipart/alternative; boundary="----=_NextPart_000_074A_01D55F19.2A9B0040"
X-Mailer: Microsoft Outlook 16.0
Thread-Index: AdVfCGSK+zpBv7BFT6SkMXDvIKzgtQ==
Content-Language: it
Disposition-Notification-To: <
[email protected]>...