ReverseMX.com: MX Record Lookup and SPF Record Check
humboldt.edu - Screenshot

humboldt.edu - MX Records & SPF Records

Created:Dec. 17, 1990
Expires:July 31, 2013
Reverse IP:1 other sites
Whois History: 214 records
Location:US, California, Arcata

The domain humboldt.edu has MX records(?)A Mail Exchange Record, also known as MX Record, is a DNS record that identifies the mail server where email for a particular domain is to be delivered. A mail server can receive mail for any number of domains. Multiple MX records can be used to identify additional back up servers. for seven mail servers.

The domain humboldt.edu has four SPF rules(?)Sender Policy Framework records are used to identify Internet hosts that are allowed to send mail for a particular domain. An SPF Record is put in the same level as an MX Record. When an SPF Record is present, a properly configured mail server will not accept mail from servers not listed in that record. By configuring your mail server to respect SPF records, you can reduce the amount of unsolicited emails that use spoofed sender data..

 
MX Records & SPF Records Last Updated: December 05
SPF Rules
There seems to be an error in the SPF rule: + 68.142.178.0/23.
Email will pass if policy passes from an included SPF record _spf.google.com.
Email will pass if the sender's address is in the given address range 137.150.0.1/16.
Email will fail for all.