jdickson@jpl-mil.jpl.nasa.gov (Jeff Dickson) (05/03/89)
Hello, I use SMTP on my vanilla O.S. 4.0 Sun to send mail to various users. If I command SMTP to send mail to an invalid user (using the RCPT command), I get the expected error back - "550 User unknown". I then reset the connection using the RSET command. But if afterward I specify a valid user, SMTP hangs in the process of verifying the user and my process is eventually killed because the connection to SMTP times out. I get something of the nature 'NET-HANG' in my log file. However, all works well if I issue the RSET command everytime. RFC821 says that upon being issued the RSET command, SMTP is supposed to forget all of the current mail transaction. This is apparently not the case, because the mail IS being delivered regardless that I issued the RSET command. Currently, I do not close and re-open the connection to SMTP eveytime to send mail. I open it the first time and finally issue the QUIT command and close it when I done. Could this be the reason I am encountering difficulty? Please send any responses to: jdickson@zook.jpl.nasa.gov . I will summarize and post to the net. Thanks. Jeff Dickson