How does Email UTM deal with email?

Most anti-spam mail products in the market apply mail handling software package (open source), and thus the SMTP connections can not be adroitly used and handled. Cellopoint considers that the SMTP connection handling engine must be developed by ourselves in order to effectively handle enormous SMTP connections. The SMTP handling engine developed by Cellopoint can intercept mails sent through SMTP connections for mail inspection. The mails which fail the inspection checks will be intercepted or quarantined, and they will thus not be sent to mail relay host as a result of that the burden of the mail relay host can be significantly reduced.