Author Archives: ukfsn

You are a spammer and you don’t even know it!

Over the past several months I have been seeing an increase in the number of customer accounts being abused to relay spam via our server. In each case the customer account credentials have been used to authenticate to our SMTP … Continue reading

Posted in Email, SPAM

Outage Yesterday

Yesterday afternoon UKFSN suffered a serious outage our main servers. This knocked out all web servers, the main email servers and the RADIUS authentication service. Broadband, Backup MX service and DNS services were not affected. The loss of service started … Continue reading

Posted in Uncategorized

Filtered Internet Access

You may have seen an announcement today by David Cameron, the British Prime Minister, in which he states that all ISPs in the UK have agreed to block pornography (and other materials) by default with customers being required to deliberately … Continue reading

Posted in Uncategorized

Problems with AWBS on Debian Stable

Recently I moved the UKFSN services to a new platform which involved migrating everything to new servers. UKFSN runs on Debian Linux and had been running on an older version of the Debian stable distribution. The new servers are all … Continue reading

Posted in Uncategorized

How to test sending email using MIME::Lite

Earlier this week I had to update a system that uses the MIME::Lite module to send email so that the emails it sends are properly UTF-8 encoded. The change to the code was very simple. What was a little less … Continue reading

Posted in Code, Email, Perl, Testing

Why you should learn perl programming

Last weekend I attended the London Perl Workshop. One of the discussions was centred on the state of the jobs market for Perl programmers. If you listen to many in the media and those who measure the popularity of programming … Continue reading

Posted in Uncategorized

Preventing SMTP Auth abuse

One of the biggest problems I have had to deal with over the past few years has been abuse of authenticated SMTP. Spammers occasionally manage to obtain a customer’s username and password and use these to send email via our … Continue reading

Posted in Code, Email, Perl, Postfix, SPAM