Mobile email with Linux email servers

Not every business runs Microsoft Exchange. Maybe the company isn’t based around a Microsoft infrastructure or Exchange is too expensive or they use something else for historical reasons. It is very common in this situation for the company’s email to be run on one of the various Linux distributions, either with a packaged email system, or a hand-rolled one. How do you get email to mobile devices in these circumstances?

As with Exchange and non-ActiveSync devices, IMAP is the best way of enabling access for mobile devices. An IMAP server that responds to the IDLE command correctly (keeping the connection to the device open, and sending notification of changes such as new mail as they happen) provides the same functionality as push email.

In order to maintain security of email, your chosen server must support session encryption. Many packed email servers, such as Communigate Pro, allow the addition of SSL certificates; some don’t though, so carefully check the feature lists of your potential solutions.

If you wish to hand-configure a basic Linux installation, there are a number of how-tos available depending on your choice of SMTP and IMAP or POP3 server. The solutions for Postfix (for SMTP) and Cyrus (for IMAP) are particularly clearly documented – these, in conjunction with OpenSSL for SSL certificate requesting and management, will enable you to set up as secure and as flexible a mobile email solution as an integrated, packaged system. The question then is whether the ease of management of a packaged system outweighs the extra cost.

Postfix TLS Support:

Configuring Cyrus IMAP:

Communigate Pro:

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Comments (1)
Posted: May, 5 2009


But crazy thought? I dont think so..
As I tweeted, Oracle buys the Sun to break through the Cloud.
Looking forward to the IBM-SAP post.



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If you're supporting en users who need to transfer files by FTP occasionally, explaining how to use FTP every time can get frustrating. Map an FTP site as a custom network location and they can do it through the familiar Explorer window. If you only have a couple of machines you can choose Tools >Map Network Drive… in Explorer and click the link 'Connect to a Web site that you can use to store your documents and pictures' to open a wizard that creates a network location. Select 'Choose a custom network location', type in the FTP address and fill in the user name and password. You can also create mapped drives and network places on the Environment tab of the user's Active Directory object - but if you have a lot of users to set up, put it in the logon script for the user profile under Active Directory Users and Computers.
If you're running into problems with Group Policy Objects, check this handy summary of the rules at read more


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