Checksum Mismatch

Using OpenDNS

sudo port upgrade outdated
---> Fetching archive for apr
Warning: Your DNS servers incorrectly claim to know the address of nonexistent hosts. This may cause checksum mismatches for some ports.

Upgrading, received an error:

The file has been moved to: /opt/local/var/macports/distfiles/file/file-5.15.tar.gz.html
Error: org.macports.checksum for port libmagic returned: Unable to verify file checksums

Downloaded the file manually and the upgrade continues. Removed OpenDNS from my dnsmasq.