Re: 2FA and IMAP

Alvin Starr <alvin@xxxxxxxxxx> · Tue, 23 Apr 2019 15:10:33 -0400



    This is not multifactor authentication  and I am not sure if it
      will work but I was kicking around the idea of trying to use
      client certificates to insure that only mail clients with the
      proper client certificate  installed can connect.
    

    On 4/23/19 2:46 PM, Christian Fontana
      wrote:

    
      Hi. But the documentation not seems to be complete.
        I was not able to find an example or an explanation about how to
        restrict access to a single IMAP account from a certain IP.
        May you point me to the righe page of documentation?
        

        thanks
        

        On Mon, 22 Apr 2019 at 19:14,
          Adam Tauno Williams <awilliam@xxxxxxxxxxxxx>
          wrote:

        
        On
          Sun, 2019-04-21 at 23:09 +0200, Marcus Schopen wrote:

          > Hi,

          > 

          > a friend wants to restrict access to his mailbox with
          2FA. As

          > webmailer I use Roundcube, which offers a 2FA plugin. But
          in the end

          > this is pointless, because besides the webmailer there is
          also the

          > native IMAP access available. Is it therefore possible to
          restrict

          > the access to a single IMAP account to a certain IP so
          that this

          > mailbox can only be accessed via the Roundcube?

          
          I doubt it, but maybe.  

          
          All the authentication stuff is handled by SASL - not really
          Cyrus -

          and SASL is deeply configurable.

          
          https://www.cyrusimap.org/sasl/

          
          -- 

          Adam Tauno Williams, awilliam@xxxxxxxxxxxxx

          Multi-Modal Activists Against Auto Dependent Development

          resisting the unAmerican socialists of the Motorist hegemony

          http://www.mmaaadd.org
          

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