How can I check if port 25 open for outgoing or to send email only?
by cola from LinuxQuestions.org on (#6M3ZK)
How can I check if port 25 open for outgoing or to send email only?
I mean, I want to send email through 25 port. I do not want to receive email through 25 port.
If I do telnet smtp.gmail.com 25, it said connected and it prompts to enter input. Does that mean the port 25 open for sending email?
But from online port checker tool, for my public ip address, I see, port 25 is closed.
I mean, I want to send email through 25 port. I do not want to receive email through 25 port.
If I do telnet smtp.gmail.com 25, it said connected and it prompts to enter input. Does that mean the port 25 open for sending email?
But from online port checker tool, for my public ip address, I see, port 25 is closed.