“VPOP3 Antivirus” is a new product to replace the avast! for VPOP3 product which will no longer be supported after the end of 2012.
VPOP3 Antivirus uses the popular 'ClamAV' virus scanner to scan incoming and outgoing messages for viruses.
ClamAV is a popular open-source antivirus program. While it is not as effective at detecting viruses as avast, it still detects most viruses.
It is commonly used on ISP mail servers for checking for viruses as messages pass through.
We have tried to continue using the avast virus scanning engine or find an alternative commercial low-cost virus scanning engine which we could integrate into VPOP3, but have not been able to do so yet - we will continue looking. (If anyone knows of one which we could licence, we would be glad to investigate further).
Because most people want a low cost antivirus solution on their email server, we decided to develop a low cost ClamAV integration rather than produce another, more expensive, option.
However, it is not easy to use the ClamAV software with a program like VPOP3. The VPOP3 Antivirus product which you purchase from us includes the software to easily use ClamAV from within VPOP3 and also support for this integration.
We have modified the ClamAV software slightly for use with our plugin (primarily to try to stop infected emails triggering other antivirus programs installed on the VPOP3 computer). The source code containing these modifications is available from us on request.
No, VPOP3 does not link into the ClamAV libraries at all. The VPOP3 Antivirus plugin executes the 'ClamAV daemon' as a separate program, then communicates with it using a documented TCP/IP protocol. This means that they are treated as separate programs.
If you have used avast! for VPOP3 in the past, what are your options now?
There are several options available to you:
NB - we can only supply Sophos SAV Interface within the UK. If you are outside of the UK, you should be able to find a local supplier.
You can contact us by email or telephone (01484 855800) if you have any questions about what you should do.