318 Tech Journal » Mac OS X Server

Mail Archival

Charles Edge — Sat, 07 Nov 2009 19:39:50 +0000

There are a number of messaging solutions that allow for automated message archiving. Message archiving can save space, while freeing up valuable resources and can also help to maintain Sarbanes-Oxley compliance (as well as achieve a number of other objectives). But not all messaging solutions allow for automated archival. Enter Mail Archiva into the picture.

Mail Archiva is an open source project aimed at bringing messaging archival to Microsoft Exchange, Zimbra, Mac OS X Server, Postfix, SendMail, IpSwitch, Axigen and a number of other messaging servers.

If you are in need of mail archival then feel free to reach out to us for more information on Mail Archiva today!

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New Mac mini w/ Mac OS X Server for $999

Charles Edge — Tue, 20 Oct 2009 16:52:14 +0000

Apple has released a new Mac mini that retails for $999. You might be thinking that $999 is just a little bit high for a Mac mini – and you would be right, that is, if it didn’t come with Mac OS X Server. The combination of the price point, the hardware and the software make the new Mac mini with Mac OS X Server a perfect purchase for small businesses and servers geared for use as specific utility servers!

The new Mac mini server comes with no optical drive, which is great because instead you get a pair of internal drives that can be setup in a RAID to protect your data! The server also comes with 802.11n, Ethernet and bluetooth – allowing a variety of uses.

Call 318 today for more information on this great new product from Apple!

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Greylisting and Snow Leopard Server

Charles Edge — Thu, 08 Oct 2009 17:38:19 +0000

10.6 has introduced the use of Greylisting as a spam prevention mechanism. In short, it denies the first attempt for an MTA to deliver a message, once the server tries a second time (after an acceptable amount of delay, proving it’s not an overeager spammer), it can be added to a temporary approval list so future emails are delivered without a delay.

The problem with this is many popular mail systems, including gmail, don’t exactly behave as expected, so the messages may take hours before they are delivered. To get around this, the people championing greylisting suggest maintaining a whitelist of these popular, but ‘non standard’ mail servers, allowing them to bypass the greylist process entirely and accepting the messages the first time around. The other problem is for companies that send mail through mxlogic and other similar services, the mail is sent from the first available server, potentially causing delayed because they were being sent by a different mxlogic box each time.

The problem with this under 10.6 is there is no gui or interface to inform you that greylisting is enabled (it gets turned on when you enable spam filtering), and so it just takes forever for messages to hit your inbox. You can start managing the whitelist / greylist system, or you can just turn it off:

cp /etc/postfix/main.cf /etc/postfix/main.cf.bak

vi /etc/postfix/main.cf

change line 667 from:

smtpd_recipient_restrictions = permit_sasl_authenticated permit_mynetworks reject_unauth_destination check_policy_service unix:private/policy permit

To the following (removing check_policy_service unix:private/policy):

smtpd_recipient_restrictions = permit_sasl_authenticated permit_mynetworks reject_unauth_destination permit

You can then run postfix with the reload verb to reload the config files, as follows:

postfix reload

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Mac OS X Server 10.6 Announced

Charles Edge — Mon, 08 Jun 2009 20:07:48 +0000

You can read the press release at Apple. Highlights include:

Half the cost: $499 for Unlimited Clients
NetRestore is now bundled with Mac OS X Server
Wiki2 includes iPhone and QuickLook-type image display
Address Book Server now included
iCal Server works with iPhone
Push Email Support
New iPhone Configuration Utility
Supa-fast (OK, that last part is not official)

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