When you telnet to port 25 on an Exchange 5.5 server and it displays the SMTP banner, where do you change name of the server that is displayed? For example:<BR><BR>220 mail.olddomain.com ESMTP Server ...
Update 26.3.2024: While not on the same scale as 2021's Microsoft Exchange Server hack (see below this update), security problems impacting Exchange Server have reemerged. In March 2024's monthly ...