On Tue, Oct 16, 2012 at 9:03 AM, Craig White <craig.white@xxxxxxxxxx> wrote:
>
> On Oct 16, 2012, at 7:02 AM, Larry Martell wrote:
>
>> This should be an easy one. I'm trying to get postfix going. I've
>> never done this before. I followed the directions at
>> http://wiki.centos.org/HowTos/postfix. I opened port 25:
>>
>> iptables -I INPUT -p tcp -m tcp --dport 25 -j ACCEPT
>>
>> Here's an attempt to send mail:
>>
>> [motor@localhost motor]# mail -v larry.martell@xxxxxxxxx
>> Subject: test
>> test
>> .
>> EOT
>> larry.martell@xxxxxxxxx... Connecting to [127.0.0.1] via relay...
>> 220 localhost.localdomain ESMTP Postfix
>>>>> EHLO localhost.localdomain
>> 250-localhost.localdomain
>> 250-PIPELINING
>> 250-SIZE 10240000
>> 250-VRFY
>> 250-ETRN
>> 250-ENHANCEDSTATUSCODES
>> 250-8BITMIME
>> 250 DSN
>>>>> MAIL From:<motor@localhost.localdomain> SIZE=219
>> 250 2.1.0 Ok
>>>>> RCPT To:<larry.martell@xxxxxxxxx>
>>>>> DATA
>> 250 2.1.5 Ok
>> 354 End data with <CR><LF>.<CR><LF>
>>>>> .
>> 250 2.0.0 Ok: queued as D26C8830F
>> larry.martell@xxxxxxxxx... Sent (Ok: queued as D26C8830F)
>> Closing connection to [127.0.0.1]
>>>>> QUIT
>> 221 2.0.0 Bye
>>
>> But I don't receive the mail. In a file in /var/spool/postfix/defer I see:
>>
>> <larry.martell@xxxxxxxxx>: connect to
>> alt2.gmail-smtp-in.l.google.com[2607:f8b0:400d:c00::1a]:25: Network is
>> unreachable
>> recipient=larry.martell@xxxxxxxxx
>> offset=654
>> dsn_orig_rcpt=rfc822;larry.martell@xxxxxxxxx
>> status=4.4.1
>> action=delayed
>> reason=connect to
>> alt2.gmail-smtp-in.l.google.com[2607:f8b0:400d:c00::1a]:25: Network is
>> unreachable
>>
>> Have I missed a step or done something wrong?
>
> ----
> most home broadband providers block outbound port 25 from reaching any smtp servers other than the ones that they provide and typically require authentication in order to stop spam.
This is not a home machine. It's my client's machine on a corporate network.
>
> Craig
>
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