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06-26-2001 10:11 AM
06-26-2001 10:11 AM
NOQUEUE message in mail.log
We have an application that runs on the same server as sendmail, but are receiving this message:
Jun 26 08:15:21 vacpp7 sendmail[26766]: NOQUEUE: timeout waiting for input from vacpp7 during server cmd read
Jun 26 08:15:21 vacpp7 sendmail[26766]: NOQUEUE: Null connection from vacpp7 [90.73.48.41]
Is it because the remote SMTP connection is not actually sending a message?
Thanx.
Jun 26 08:15:21 vacpp7 sendmail[26766]: NOQUEUE: timeout waiting for input from vacpp7 during server cmd read
Jun 26 08:15:21 vacpp7 sendmail[26766]: NOQUEUE: Null connection from vacpp7 [90.73.48.41]
Is it because the remote SMTP connection is not actually sending a message?
Thanx.
If I can't be part of the Greatest, I just have to be the Greatest myself!
1 REPLY 1
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06-26-2001 11:44 AM
06-26-2001 11:44 AM
Re: NOQUEUE message in mail.log
Michael, you have it exactly right.
A null connection represents the lack of a standard smtp command from the client. One of the following commands are expected or a null connection status message occurs.
MAIL
EXPN
VRFY
ETRN
An example of how to cause this is to telnet port 25 and issue a quit. A null connection will then occur:
# telnet XXXX 25
Trying...
Connected to XXXX.
Escape character is '^]'.
220 XXXX.XXXX.hp.com ESMTP Sendmail 8.9.3/8.9.3; Tue, 26 Jun 2001 15:34:15
-0400 (EDT)
quit
221 XXXX.XXXX.hp.com closing connection
Connection closed by foreign host.
# tail -2 /var/adm/syslog/mail.log
Jun 26 15:31:49 XXXX sendmail[10190]: NOQUEUE: Null connection from XXXX [
999.999.999.999]
Jun 26 15:34:17 XXXX sendmail[10237]: NOQUEUE: Null connection from XXXX [
999.999.999.999]
Kirk Gardner - IA-64 Engineer (HPUX Sys Adm)
A null connection represents the lack of a standard smtp command from the client. One of the following commands are expected or a null connection status message occurs.
EXPN
VRFY
ETRN
An example of how to cause this is to telnet port 25 and issue a quit. A null connection will then occur:
# telnet XXXX 25
Trying...
Connected to XXXX.
Escape character is '^]'.
220 XXXX.XXXX.hp.com ESMTP Sendmail 8.9.3/8.9.3; Tue, 26 Jun 2001 15:34:15
-0400 (EDT)
quit
221 XXXX.XXXX.hp.com closing connection
Connection closed by foreign host.
# tail -2 /var/adm/syslog/mail.log
Jun 26 15:31:49 XXXX sendmail[10190]: NOQUEUE: Null connection from XXXX [
999.999.999.999]
Jun 26 15:34:17 XXXX sendmail[10237]: NOQUEUE: Null connection from XXXX [
999.999.999.999]
Kirk Gardner - IA-64 Engineer (HPUX Sys Adm)
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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