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DKIM and subaddressing added to 25mail.st
We have added a couple of features to the 25mail.st service. First, we now support DKIM email signing. This lets our email servers sign outgoing messages so that recipients can verify that the email was sent from an authorized server. You will need to add a DNS entry for each email domain wishing to have…
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SSLv3 and securing against Poodle
If you are using SSL in your web server, you probably want to read this. Google recently published details about an attack that targets SSLv3. The exploit first allows attackers to initiate a “downgrade dance” that tells the client that the server doesn’t support the more secure TLS (Transport Layer Security) protocol and forces it…
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Emailed backup of a database via cron – Attaching files via command line
Sometimes people want an easy offsite backup option for important databases or files, and having a cron to automate that can be helpful. One of our customers had such a case so i wrote a shell script which emailed him a copy of his database every day. Since i thought it was a handy thing…
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Cron script for checking disk space
Here is script for those that interested in not installing a daemon like monit, and just rely on a simple bash script to send notifications when the disk space is low. It is a quite common of a server crashing even though it has been well configured, that rotates logs, etc, but still receives an…
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Previewing 25mail.st: managed email hosting service
Mail server issues are one of the most frequent mail server requests we get here at RimuHosting. Troubleshooting existing configurations. Setting up ‘basic’ mail servers for customers. Setting up fancy ‘do everything’ mail servers for customers. Answering queries about why ‘x’ is flagged as SPAM (or not). Advising on things like SPF and DKIM. Blacklists…
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Setup mail hosting on Debian Squeeze and other distros using postfixadmin
Postfix is our favorite mail server. We find it’s easy to configure and performs really well. When asked at a recent conference talk, Eric Allman the creator of Sendmail, said he would use Postfix if starting today. Many people ask us if there is an easier way to setup and manage email address and aliases,…
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Its the small things that help
We have some users who own VPS who dont want to fork out for automated systems like Plesk or Virtualmin, but dont really want to deal with adding domains and email addresses all the time (and sometimes get lost) I decided today after one such user emailed us to add another 3 domains and bunch…
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Failover – What happens when your VPS goes down?
A lot of customers are realizing that having 1 single VPS is great, but if for some reason it goes down and crashes, customers are left wondering what happened. Whilst rimuhosting monitor long term excessive CPU useage, it might be an hour before we realize a VPS has had an OOM error (out of memory)…
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Spam Addresses
I hate spam. I really hate spam. I guess everybody can relate to that. I not only hate spam, but I don’t like receiving correspondence from some website that made me register to view some content or post a message, some site that that I’ve ordered from or any other place that I’ve had to…
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Themed days in support
I notice that we seem to have waves of support in various ways. One day we will start our shift and be totally overloaded the entire day, so busy that we end up doing a little extra after hours (posting this blog whilst cooking dinner today!). Other days its pretty dull so we play table…