Mail Clients

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This page details steps for setting up common e-mail clients to access accounts on our mail server.

The general configuration is:

Incoming: IMAP - 993 - SSL/TLS
Outgoing: SMTP - 465 - SSL/TLS


Evolution is the default email client available on most desktop installations of Linux.

Server Type: IMAP

Server Address:

Incoming IMAP Port (with ssl): 993

Incoming IMAP Port (without ssl): 143

It is recommended that you use ssl encryption to secure your e-mail communications.

Outgoing Mail Settings

(Likely old, use settings at the top of page otherwise)Select Sendmail as the protocol for your outgoing mail. The outgoing server address should be the same as the incoming address.

Apple Mail (Mavericks & Yosemite)

Open up Mail and press the 'Command(⌘)' + ',' keys on your keyboard (the command key will be the Windows key if you are using a PC keyboard). This will bring up your Apple Mail preferences. Select the 'Accounts' tab and then the '+' symbol at the bottom left of the window. Select the 'Add Other Mail Account...' as shown in the following screenshot.


Enter your name, NPG email (, and NPG password. Press 'Create' to continue. Mail will attempt to figure out the settings necessary to connect and fail. When this happens it will ask you to configure your account manually. Go ahead and press 'Next' at this point.


Select the Account Type as 'IMAP'. Set the Mail Server option as ''. Input your NPG username and password and press next.


A certificate warning will appear. Select 'Show Certificate' and check off the 'Always trust' option. You may be prompted for your password to save changes.


Set the SMTP Server option as '', and again enter your NPG username and password. Press 'Create' to complete the process.



Thunderbird is a free and open source mail client developed by the Mozilla Foundation.

If it is your first time running Thunderbird, you will be prompted to setup a new account. It should look like this:


Enter your name, NPG email (, and NPG password. You may be prompted with the following security warning:


This is normal, just click Confirm Security Exception. Next you will be presented with the settings autogenerated by Thunderbird. You will need to make some minor changes to these settings. Click the "Edit" button on this screen:

Set the outgoing port to 465 and the encryption settings next to SSL/TLS. It should look like this:

Thunderbird edit-settings.png

Once the changes are made click Re-test Configuration. You should now have green lights next to both incoming and outgoing server options. All you need to do now is click Create Account and you will be able to access your e-mail in Thunderbird.