PART$-$E: Email Colloboration

Labs are designed for learning experience and to collaborate with your section students to experience sending

and receiving emails to and from their VMs$.$ Purpose of assigning different IPS is to gain the understanding of

working in a network, and partner sharing is highly expected in the lab.

PARTNER WITH ONE OF YOUR CLASS MATE TO DO THE FOLLOWING EXERCISE

From your Remote Host, logged in with your own user name, send email to your partner's Central Mail

Server and SCREENSHOT the message available in your mail logs$.$

From your Central Mail Server, logged in with your own user name, send email to your partner's Central

Mail Server and SCREENSHOT the message available in your mail logs$.$

prof benann nathan

NEST$257$

SCREENSHOTS of the TWO emails you have received from your lab partner in your Central Mail Server from

your partner's Central Mail Server and Remote Host.

PART$-$F: Email Access Control $($You may select another partner for this exercise$)$

Establish access control in Central Mail Server to block your partner email by rejecting mails from your

partner IP and check if you can receive email from your lab partner and similarly check if your email is able

to be sent to your lab partner

SCREENSHOT the following from Montreal and Toronto,

Display the entries to reject email in the relevant configuration file.

grep the messages related to the rejections of both incoming and outgoing in mail log file

List and Display the undelivered message due to access control