We are trying to email pdf files with very long filenames from an iOS app. The filename is critical to our work flow- and app. When the filename is > 60 Characters, Outlook renames the file to “Untitled attachment 000nn.pdf”. This only occurs when the attachment is sent between iOS mail and Outlook. It occurs for any pdf with name >60Char (was not specific to pdf's created by our app) .
The filename is correct when the email is viewed in other systems ( we tried Gmail web and iphone app, Microsoft mail, and mail on both mac and iphone).
The filename is also correct when the email is re-routed to Outlook via another email system ( including via the Gmail app on iPhone).
The filename always became "untitled.." when last routed through iOS mail and viewed in Outlook (even if the email originated in Outlook and the file came from MS)
Can anyone advise if there is a workaround from the iOS side please - we need to retain the long filename and have no control over the user's outlook account. Most appreciated.
