Web interface

4:41 minutes

SMTP Stuttering

0:38 minutes

Temporary queuing

3:01 minutes

Quarantine subsystem

3:33 minutes

Virus scanning

3:32 minutes

SURBL URI scanning

3:30 minutes

Sender scoring

3:28 minutes

Malware scanning

3:31 minutes

Mailbot automation

3:29 minutes

Heavyduty logistics

3:27 minutes

Greylisting

3:30 minutes

Blacklisting

3:29 minutes

DNS checks

3:30 minutes