Microsoft Outlook send/receive file size limits are configured at the Microsoft Exchange mail server level by a company’s IS/IT department and vary from company to company, and can vary by user if configured as such by an Exchange Administrator. Contact your companies IS/IT Help Desk or department if you need to send/receive larger files via email, although they will probably recommend and set you up to use sFTP (secure file transfer protocol) instead of increasing the mail file size limit.
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