Mailx sending but not receiving Post: 302936485

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Operating Systems Solaris Mailx sending but not receiving Post 302936485 by sparcguy on Thursday 26th of February 2015 12:10:48 AM

02-26-2015

Registered User

I hate mail problems they are not so easy to handle can spend up to days trying to fix mail issues. Most times related to dns or host resolution issues in /etc/hosts file or /etc/nsswitch.conf

from that server where you run the command is it allowed to send email to go out to internet?

do command
nslookup google.com

if cannot check /etc/resolv.conf if there are nameservers there check in /etc/nsswitch.conf if there is an entry
hosts: files dns

if you are only allow relay from this server to another server

1) what is your sendmail.cf DS pointing to? example DSsomemail means it's relaying to somemail server

try to telnet to the mail server at smtp port 25 send email from it see if you can receive.

root# telnet somemail 25
Trying somemail...
Connected to somemail.
Escape character is '^]'.
220 somemail ESMTP Postfix
mail from: darthvader
250 2.1.0 Ok
rcpt to: someone@gmail.com
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
test
test
.
250 2.0.0 Ok: queued as 16FA7160BA3
quit
221 2.0.0 Bye
Connection to somemail closed by foreign host.

if you can telnet and send email and receive it means it's could be some relaying configuration issues. If you cannot means there's also some other issue network dns firewall

I hate mail issues.

sparcguy

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LEARN ABOUT OSF1

from

from(1) 						      General Commands Manual							   from(1)

NAME

       from - Shows whom mail messages are from

SYNOPSIS

       from [-s sender] [user]

       The from command prints out the mail header lines in your mailbox file.

OPTIONS

       Prints headers for mail sent by sender.	Specifies a mail spool directory.

	      Use this flag if you want to examine a mailbox in a directory other than /usr/spool/mail, which is the system default.

DESCRIPTION

       If user is specified, then user's mailbox is examined instead of your own.

EXAMPLES

       To display the message headings in your mailbox, enter: from

	      The  names  of  the  senders and the message dates are displayed.  To display the message headings for mail sent by a specific user,
	      enter: from -s dale

	      Displays only the message headings of the messages sent from user dale.  To display the message headings in a specific user's  mail-
	      box, enter: from dawn

	      The message headings from user dawn's mailbox are displayed, provided you have read permission for dawn's mailbox.

FILES

       User mailbox files.

SEE ALSO

       Commands:  biff(1), mail(1), mailx(1)

																	   from(1)