In this section

• Home
• Support
• Knowledgebase
• Topics

Online support

• Knowledgebase
• Virus disinfection

Product maintenance

• Downloads and updates
• Documentation
• Software lifecycle

Contact support

• Talk to an expert
• Send a sample
• Email us

Support services

• Overview
• Technical Support
• Professional Services
• Technical Training

Support Get 24/7 technical support, and update your protection

• Search knowledgebase
• Downloads and updates
• Browse knowledgebase

• Browse all knowledgebase topics
  • PureMessage
    • PureMessage for UNIX

• PureMessage for UNIX 5.4.4

  Created: 9 August 2008, updated: 29 August 2008

• Advisory: Unexpected terminations of selected Sophos products by zero-byte MIME attachments

  Created: 9 July 2008, updated: 9 July 2008

• PureMessage for UNIX: Configuring SMTP Authentication with the MTA IP Blocker (Postfix only)

  Created: 12 June 2008, updated: 25 June 2008

• PureMessage for UNIX: Upgrading from a pre-5.3.2 version

  Created: 8 May 2008, updated: 13 May 2008

• PureMessage for UNIX: why are quarantine digests not being generated?

  Created: 1 May 2008, updated: 13 May 2008

• PureMessage for UNIX: why are allowed or blocked senders not being handled as expected?

  Created: 25 April 2008, updated: 30 April 2008

• PureMessage for UNIX: Enabling UTF-8 for Chinese, Japanese, and Korean Characters

  Created: 25 April 2008, updated: 25 April 2008

• PureMessage for UNIX: support for non-English characters

  Created: 24 April 2008, updated: 25 April 2008

• PureMessage for UNIX: starting sendmail or Postfix automatically on reboot

  Created: 23 April 2008, updated: 23 April 2008

• PureMessage for UNIX: starting PureMessage automatically on reboot

  Created: 22 April 2008, updated: 23 April 2008

• PureMessage for UNIX: open file limitations on Solaris

  Created: 21 April 2008, updated: 21 April 2008

• PureMessage for UNIX: why does my PureMessage log show aborted messages?

  Created: 21 April 2008, updated: 21 April 2008

• PureMessage for UNX: common SMTP status/error code meanings

  Created: 21 April 2008, updated: 21 April 2008

• PureMessage for UNIX: quarantining backscatter/NDR messages for selected recipients

  Created: 17 April 2008, updated: 4 June 2008

• Dealing with Spear Phishing Campaigns

  Created: 15 April 2008, updated: 17 April 2008

• Description of Backscatter / NDR spam

  Created: 14 April 2008, updated: 1 May 2008

• PureMessage for UNIX: How to increase the speed of DNS lookups

  Created: 3 April 2008, updated: 30 April 2008

• PureMessage for Unix: Addressing a load increase due to increased spam volume.

  Created: 2 April 2008, updated: 23 July 2008

• Sophos products, notification of retirement dates

  Created: 17 March 2008, updated: 31 March 2008

• PureMessage for UNIX: what is the default process pooling behavior?

  Created: 14 March 2008, updated: 14 March 2008

• PureMessage for UNIX: how do I set the concurrency limit?

  Created: 14 March 2008, updated: 30 April 2008

• PureMessage for UNIX: Why did sendmail generate a "group writable directory" error?

  Created: 13 March 2008, updated: 30 April 2008

• Sophos Products system requirements

  Created: 13 March 2008, updated: 9 April 2008

• PureMessage for UNIX: switching from sendmail to Postfix

  Created: 12 March 2008, updated: 13 March 2008

• PureMessage for UNIX: which mail transfer agent should I use?

  Created: 11 March 2008, updated: 12 March 2008

• PureMessage for UNIX: Tuning PostgreSQL 7.4 for PureMessage 5.x

  Created: 22 February 2008, updated: 5 June 2008

• Sophos Extensible List: SXL

  Created: 27 November 2007, updated: 12 December 2007

• PureMessage for UNIX: upgrading to version 5.4

  Created: 9 October 2007, updated: 2 April 2008

• PureMessage for UNIX: how to troubleshoot a “socket_map_lookup(pmxbl)” error in the system maillog

  Created: 28 June 2007, updated: 2 July 2007

• Sophos Anti-Virus for Linux: running on-access scanning on the same computer as PureMessage for UNIX

  Created: 25 May 2007, updated: 8 July 2008

• PureMessage for UNIX: how to relocate the PureMessage installation to another disk

  Created: 26 April 2007, updated: 30 April 2008

• PureMessage for UNIX: how to relocate the quarantine and log directories

  Created: 26 April 2007, updated: 30 April 2008

• PureMessage for UNIX: how to customize graphics in the End User Web Interface

  Created: 21 March 2007, updated: 8 March 2008

• PureMessage for UNIX: Database Disk Usage Growth

  Created: 19 January 2007, updated: 25 April 2008

• Upgrading from MailMonitor for SMTP - UNIX

  Created: 24 October 2006, updated: 30 August 2007

• PureMessage for UNIX: configuring IP Blocker with third-party versions of Sendmail

  Created: 31 August 2006, updated: 6 August 2008

• PureMessage for UNIX: configuring IP Blocker with third-party versions of Postfix

  Created: 29 August 2006, updated: 2 April 2008

• PureMessage for UNIX: Dumping and Restoring the PostgreSQL database

  Created: 14 June 2006, updated: 26 May 2008

• Sophos Mobile Security: overview

  Created: 17 May 2006, updated: 27 February 2008

• Customer checklist

  Created: 22 March 2006, updated: 23 July 2007

• Updating to PureMessage for UNIX version 5.3 from version 5.0, 5.1, or 5.2 [obsolete]

  Created: 25 October 2005, updated: 15 July 2008

• Current versions of Sophos products

  Created: 19 August 2004, updated: 12 August 2008

• Submitting samples of suspicious files to Sophos

  Created: 1 July 2004, updated: 18 August 2008

• PureMessage for UNIX: rotating log files

  Created: 28 June 2004, updated: 29 February 2008

• PureMessage for UNIX: aborted messages showing in log

  Created: 31 December 2003, updated: 26 July 2007

• PureMessage for UNIX: messages are not being scanned for spam

  Created: 31 December 2003, updated: 28 February 2008

• PureMessage for UNIX: facilitating a problem-free rollout of email filtering

  Created: 17 December 2003, updated: 13 July 2006

• PureMessage for UNIX: identifying which version is installed

  Created: 17 December 2003, updated: 28 February 2008

• PureMessage for UNIX: making the pmx_log more verbose

  Created: 17 December 2003, updated: 28 February 2008

• PureMessage for UNIX: method of filtering messages

  Created: 16 December 2003, updated: 2 April 2008

• PureMessage for UNIX: running PureMessage with existing mail systems

  Created: 16 December 2003, updated: 21 February 2008

• PureMessage for UNIX: protection against security vulnerabilities

  Created: 16 December 2003, updated: 29 June 2006

• PureMessage for UNIX: evaluation

  Created: 16 December 2003, updated: 6 October 2006

• PureMessage for UNIX: prerequisites for installation

  Created: 16 December 2003, updated: 20 February 2008

• PureMessage for UNIX: memory and processor requirements

  Created: 16 December 2003, updated: 22 February 2008

• PureMessage for UNIX: configuring milter parameters for sendmail

  Created: 16 December 2003, updated: 1 April 2008

• PureMessage for UNIX: overview

  Created: 16 December 2003, updated: 2 April 2008

• PureMessage for UNIX: platforms supported

  Created: 16 December 2003, updated: 20 February 2008