Using dovecot with RoundCubeMail - where is the information for new mail in (blue coloured) directories?

David Morsberger david at
Sat Dec 19 16:53:35 EET 2020


I looked around and this is deep in the Roundcube service side code. It is detecting a new message in a folder since the last time you viewed the contents of the folder.  

I see has the folder list items are changed through css and how the server side code is receiving the request to check for recent. It get complicated after that. I cannot determine if it is keep state in roundcube or making a call to the IMAP provider. I am leaning to roundcube state. 

> On Dec 19, 2020, at 12:19 AM, Philip Rhoades <phil at> wrote:
> David,
> On 2020-12-19 00:08, David Morsberger wrote:
>> Phil,
>> Are you trying to find out how dovecot marks emails as unread?
> No - I am trying to work out how New Unread Mails are highlighted in blue - see the attached partial screen capture - the two blue-highlighted RCM folders are highlighted in blue AND are also in bold - folders with OLD but UNREAD mails are just in bold.
> I want to create a script or find out some way of marking a folder blue according to the datestamp of the most recent mail in the folder.
> Does that make sense?
> Thanks,
> Phil.
>> Assuming you are using maildir format, it appears to be encoded as
>> flags in the email filename on disk.
>> It’s briefly covered in 'Filename examples'
>> And in 'What can I put in info?'
>>> On Dec 17, 2020, at 7:12 PM, Philip Rhoades <phil at>
>>> wrote:
>>> Benny,
>>> On 2020-12-18 09:28, Benny Pedersen wrote:
>>> Philip Rhoades skrev den 2020-12-17 22:14:
>>> Every few years I try to work this problem out
>>> User-Agent: Roundcube Webmail/1.4-rc1
>>> please upgrade first
>> It is a long-standing problem and upgrading RCM is not a solution . .
>>>> - occasionally I would
>>>> like to re-mark a dir as having new mail so that the dir shows up
>>>> as
>>>> blue-coloured in RCM.
>>> please dont modify mails outside of imap protocol,
>> Then how do I do what I want with IMAP?
>>> if you use
>>> roundcube it will not be needed to mangle shell accounts
>> That comment doesn't make sense . .
>>>> Every time I Google in vain and then have a go
>>>> at working it out myself
>>> if google have no answer to it, its simple not supported
>> Quite frequently not true . .
>>>> but the only thing I can see is that there is
>>>> a change in the appropriate dir dovecot.index.log file after
>>>> having
>>>> the blue dir clicked on
>>> dont mangle files outside of imap protocol
>> You already said that - what is your solution then?
>>>> (and the colour of the dir name changes back
>>>> to black) - so is the information stored somewhere in RCM itself?
>>> no
>> OK, overall not a very helpful response . . but thanks anyway.
>> P.
>> --
>> Philip Rhoades
>> PO Box 896
>> Cowra  NSW  2794
>> Australia
>> E-mail:  phil at
> -- 
> Philip Rhoades
> PO Box 896
> Cowra  NSW  2794
> Australia
> E-mail:  phil at <mailto:phil at><RoundCubeMail_NewUnreadMail.png>

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