[imp] msg bigger than limit_inline_size, download without file extension name

[Nethub Online]

Hi all,

In imp/config/mime_drivers.php, there is a limit_inline_size for both
'plain' and 'html', according to its description "above this limit, the user
will only be able to download the part.", it generate a link to let user
download the part, however the file doesn't contains extension name (e.g.
.html / .txt), for 'plain', the file name is "Text" (without extension
name), for 'html', the file name is "HTML_____________" (without extension name)


Is it able to be with file extension name? Because normal end-users do not
know how to open it (I believe).


Horde Version

    5.1.1

Horde Applications

    Agora [Forums]: unknown
    Ansel [Photos]: unknown
    Chora [Version Control]: unknown
    Content: 2.0.2
    Gollem [File Manager]: H5 (3.0.1) (run tests)
    Hermes [Time Tracking]: unknown
    Imp [Mail]: H5 (6.1.2) (run tests)
    Ingo [Filters]: H5 (3.1.1) (run tests)
    Jonah [News]: unknown
    Klutz [Comics]: unknown
    Kolab [Kolab]: unknown
    Kronolith [Calendar]: H5 (4.1.1) (run tests)
    Luxor [X-Ref]: unknown
    Mnemo [Notes]: H5 (4.1.0)
    Nag [Tasks]: H5 (4.1.0)
    Passwd [Password]: H5 (5.0.0) (run tests)
    Sam [Spam]: unknown
    Sesha [Inventory]: unknown
    Timeobjects: 2.0.4
    Trean [Bookmarks]: H5 (1.0.2)
    Turba [Address Book]: H5 (4.1.0) (run tests)
    Ulaform [Forms]: unknown
    Vilma [Mail Admin]: unknown
    Whups [Tickets]: unknown
    Wicked [Wiki]: unknown 

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