Kerio Mail Server not able to receive emails, caused by STARTTLS and an expired certificate

So my client had a recent problem with their mail server not receiving any emails. It was apparently an issue with their self-signed certificate expiring almost 3 years ago. I have no idea how they didn't notice it for 3 years. So if you're running a mail server and it's advertising that it supports STARTTLS, make sure you check your certificates.

Anyway here's what we went through:


So I get an initial call last Thursday morning. Basically a client has called and asking me for help. Their email server has not been able to receive any ...

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How I Get Things Done

My way of getting things done can be summed up as:

  1. Write tasks down in a list.
  2. Do what's on that list.

That's oversimplifying things. However, if you don't want to read any more, those 2 things should be your main steps to getting things done.

The Apps

Being in the IT industry, and always being in front of some sort of computer, my way of getting things done involves a few apps that I regularly check. They are:

  1. Things by Cultured Code

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Fixing "The Google Safe Browsing Service is Unavailable." in Safari on Snow Leopard, Disable IPv6

Have you ever gotten the error "The Google Safe Browsing Service is Unavailable." in Safari when looking in its Preferences? This error shows up below the "Fraudulent sites" option in the Security tab.

Are you running Mac OS X 10.6 Snow Leopard?

Is Safari not loading certain sites properly or at all? Particularly Google sites.

Can you still ping sites without issues?

Do you know if you have IPv6 networking setup, or are not sure about it?

You may need to disable IPv6. To disable it, follow the instructions here: http://support.apple.com/kb/HT4667.

Here are the ...

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Short Review of Mailbox for iOS

Just a short review of Mailbox. Well, not really a review. More of a list of things I like, don't like, and things that could be improved based on my short impression. I never really got to try this app out when it was first released because I was around 100,000+ in the queue when I downloaded it and didn't have the patience to wait. Now that they've removed the queue and released an update that supports the iPad, time to take a look.

Things I like

  • The swipe interface is a really nice and quick ...

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Installing PHP 5.2 on CentOS 5 Using the IUS Community Project Repository

While I'd love to have the latest supported version of software installed on my servers, there are times when that simply isn't possible or practical.

We currently do our development on CentOS 6.x running PHP 5.3. The problem is that we have several CentOS 6.x production servers that are running PHP 5.2 that, for one reason (excuse?) or another, we are unable to upgrade to PHP 5.3.

So the only solution I've found is to install PHP 5.2 on CentOS 5.x. I've previously used PHP 5.2 packages from ...

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