>In my telnet test, I did:
>        mail from:<>

... nul sender

>Now here's something I find very odd- I can telnet from my Postfix box,
>and the address verifies.  But if I do it from my W2k box at home over a
>BellSouth connection- it times out!  Different telnet client and
>different source ip.
>
>K:\>telnet d5email.usbr.gov 25
>220 *********************************************************

the jokers are running broken PIX SMTP fixup.

>Telnet from Postfix still works.  Is the .gov server really broke

yes

tx1# telnet d5email.usbr.gov 25
Trying 137.77.5.13...
Connected to d5email.usbr.gov.
Escape character is '^]'.
220 *********************************************************
helo this.is.len
250 d5email.usbr.gov Hello this.is.len (24.242.169.52)
mail from:<[EMAIL PROTECTED]>
250 sender ok <[EMAIL PROTECTED]>
rcpt to:<[EMAIL PROTECTED]>
250 Recipient ok <[EMAIL PROTECTED]>
quit
221 d5email.usbr.gov closing connection
Connection closed by foreign host.

>or is it a matter of the ip address that's trying to connect??

I dunno

Len


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