Keywords: ChemDraw files via outlook without zipping, outlook does not allow cdxml file extensions
Details: ChemDraw files cannot be sent via company Outlook email directly, and need to be put in a zip file first. Additionally, ChemDraw files with the extension "cdxml" cannot be sent; changing the extension to ".cdx" allows them to be sent.
The problem is not linked to ChemDraw; rather, it seems to be a constraint with the Outlook software. It is likely that Outlook is blocking certain file extensions, such as CDXML. However, it may permit CDX files. This happens more often on Outlook for Mac.
To address this issue, it is recommended that you liaise with your email server administrator to determine if this is a server-level problem, or contact Microsoft to request that certain file extensions be whitelisted.
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