telnet to port 25 from AS400

Question

I want to very SMTP connectivity from an AS400 in a VM to a mailserver on port 25

The native telnet command on the as400 does not seem to support a port specification.

Any ideas how to telnet from as400 to port 25 on my mailserver?

I can ping the mailserver from the as400

I can telnet in from other boxes (non as400)

Thanks \0

Answer 1

I just tried this on an i5/OS V5R4:

TELNET RMTSYS(hostname) ASCOPRMOD(*VT100) PORT(25)

I also found an IBM manual about telnet support in V5R2 that suggests you can also specify a port in older versions.

Answer 2

Type "TELNET" on the command line, press F4, fill out the remote system name, press F10, page down, page down, locate "Port" field. Change it from "*DFT" to "25". Press Enter.

When done, press F9 to get the corresponding command line invocation.