Forum Discussion
mmohaghegh
Feb 21, 2024Copper Contributor
telnet port 465,587,... Exchange server and response black screen and close
Hi everyone, when I telnet my mail server port 465,587,25,.... I can type and wait for a longtime, but some mail server, when telnet these ports, suddenly show black screen and can't type and disconnect , like telnet mail.netbox.com 465
How can I do that?
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