Category Archives: Mail

S1 Server Upgrade

S1 server will be undergoing an upgrade between 11pm PST 2014-12-09 and 4AM PST 2014-12-10.

The upgrade will help support the growing backup space available.

Server Upgrades complete

Both MX1 and S1 Servers are back up with their new HDDs.

S1 Scheduled maintenance

The S1 Webserver and MX1 Mail server are scheduled to undergo upgrades on 2014-07-03 between 10pm and 1am PST.

There will be another Scheduled upgrade within the next week for the same servers. Luckily this should be the last upgrades for a while. Unfortunately we are growing and as such we need more hardware to support our network.

DNS Mail Settings

While most people never have an issue with their emails. One of the most basic ways to help prevent being black listed and prevent spam from being spoofed from your domain name is to set up SPF records.

Here is http://cldmv.net/ SPF record:

We’ll go over what each of the portions mean now.

v=spf1

This specifies what version the SPF is. Currently the only version supported is spf1.

mx

Specifies that email originating from MX records of the domain name may send email as well.

ptr

Allows any sub domain of the domain to send out email. This can be spoofed but not very easily. Generally someone would need to have access to your DNS records to change this. Also if you have an A Record with “*” pointing to your server this helps prevent this as well.

include:cldmv.net

Specifies that any domain ending in cldmv.net may send email for the domain as well. Generally this would be for your hosting provider to determine based upon their setup.

-all

Notice the negative sign. It tells servers which follow SPF to reject all emails which do not meet the previously set rules.

Anyone hosting email with CLDMV should set their MX record to mx.cldmv.net as well as add the following txt record in order to insure emails are sent and recieved following SPF.