As you will no doubt know by the amount of spam that arrives in your inbox purporting to be from a large bank or business asking you to confirm your details, email spoofing, pretending that an email came from a different sender, is simple to do and heavily exploited by spammers. By forging these email addresses they attempt to fool people into believing that this email originated from a trusted source, and with no checks carried out on this mail it can be difficult if not impossible to tell the original source.

If your web host or email host supports SPF then this can go a long way towards confirming whether an email is from the domain that it claims to be from. The way that SPF works is by (more…)