If you get message “timed out while sending message body” on queue, please try to decrease MTU value on network interface. Default value of MTU are 1500. You can decrease into 1460 or below. # Change MTU value temporary Assuming your network interface are eth0 ifconfig eth0 mtu 1460 Please try requeue your email and ..
Many ways to secure email delivery. One of them is use TLS connection/encrypted when sending email. The encryption connection will make connection between email server more secure. This guidance will explain step by step how to check smtp outgoing already use encryption or not. # Checking Header Please try to send email to Gmail or Yahoo and check ..