How can I manually check for an email from the command line? How can I force postfix to receive/update emails? The email from gmail takes 8 minutes till it will be received by postfix. How can I reduce the time?
postfix is a part of iRedMail distr on the host with public IP, no NAT is used. Sometimes I get the email immediate, sometimes up to 30 min. Does the Postfix get the notification about email from another MTA (say gmail) to accept the email?