E-mail threat control techniques

E-mail threat control techniques

Introduction SpamCheetah is an E-mail threat control SEG. Secure E-mail gateway is the way you deploy SpamCheetah in your network and protect yourself from E-mail related attacks. Most of the network annoyances and compromises are initially spread using the medium of mail. So if you can secure mail, then it is battle won most of the time. The threats that exist at the SMTP level are always perpetrated only by humans.

Continue reading What is SMTP?

What is SMTP?

What is SMTP? SMTP overview Simple mail transfer protocol is one of the first text based protocols that software engineers play with. You can easily fire up a netcat or telnet session,talk to a mail server and deliver email. It is very similar to HTTP and it is stateful protocol, a transaction starts once you issue the DATA command. The excitement of seeing a mail sent by using low level semantics is not only very gratifying for a smart programmer it also used to serve a useful purpose.

Continue reading Network techniques for E-mail spam mitigation

Network techniques for E-mail spam mitigation

Some definitions before we begin E-mail is a protocol. And a protocol essentially means a client talking to server and vice versa. It involves handshakes, optionally sessions,cryptography in form of SSL, some secrets, counters and so on and so forth. There is no email outside of the context of the Internet. E-mail and Internet are synonymous and there is no other way than evaluate the behavior of email systems from a networking or layer III of the networking TCP/IP stack.

Continue reading SMTP protocol and its workings

SMTP protocol and its workings

What is SMTP? Simple mail transfer protocol is one of the first text based protocols that software engineers play with. You can easily fire up a netcat session,talk to a mail server and deliver email. The excitement of seeing a mail sent by using low level semantics is not only very gratifying for a smart programmer it also used to serve a useful purpose. Until the problem of spam came long.

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