Install iRedMail

How to Install Your Own Private E-mail Server in the Amazon Cloud /

How to Install Your Own Private E-mail Server in the Amazon Cloud 

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 Install iRedMail

Sign in to your instance using the preceding instructions. Follow the steps below to install and configure iRedMail:

sudo su

cd /root

If you are using an Amazon Micro instance, you’ll want to create a swap file. Otherwise, iRedMail spam software will fail and postfix will drop your outgoing messages. With anti-virus, anti-spam and key-signing features, iRedMail requires 1 GB of memory; AWS Micro provides only 640 KB.

While setting up a swap file is easy, there are some small risk of incurring unbounded internetwork bandwidth charges – so be sure to monitor your site and set up billing alarms as described in the optimization section. However, once you set up a swap file, your micro instance should be stable.

via Install iRedMail.