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Posted to server-user@james.apache.org by Dwayne Nelson <e9...@gmail.com> on 2011/05/10 21:03:56 UTC
SMTP servers, clients and ports
I'm having a difficult time understanding how to set-up and test a basic
James configuration, especially for sending messages.
First, my configuration: 3.0 M3 20110509.105439-346 on Ubuntu (Natty)
64-bit.
Ports 25 and 143 are open (I've decided to go without encryption until I
can get the server functional).
I can receive mail from the Internet on port 25. I can access that mail
remotely using IMAP on port 143. However, I can NOT send mail using
SMTP as my client never connects. SMTP connections from a client on the
server succeed. I believe outgoing connections to port 25 from remote
clients are being blocked at the client ISP - and in an odd way too
because telnet connections to 25 don't fail but rather remain blank.
So ... two questions:
(1) Is there a way to move the basic unencrypted client-server
communication (for sending messages) off port 25 (where it was getting
blocked) while leaving SMTP configured to receive server-server
communication (which is working fine)?
Previously I tried changing the port in smtpserver.xml but it broke my
server-server communication and I couldn't receive mail anymore.
(2) Is the unencrypted setup really any easier to start with?
I am starting to feel like jumping into my start/TLS configuration might
be no more work than the port workarounds that might be necessary to
test the "basic" (unencrypted) server.
Thanks
-Dwayne
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Re: SMTP servers, clients and ports
Posted by Dwayne Nelson <e9...@gmail.com>.
Thank you. I think I'll stretch for the TLS configuration then because
it is where I want to be anyway. I've picked up the example config file
from the following URL and I will wait for the SSL documentation to
release next week:
https://svn.apache.org/repos/asf/james/server/trunk/container-spring/src/main/config/examples/smtpserver-ssl.xml
On 5/10/2011 03:21 PM, Norman Maurer wrote:
> Hi there,
>
> comments inside..
>
>
> 2011/5/10 Dwayne Nelson<e9...@gmail.com>:
>> I'm having a difficult time understanding how to set-up and test a basic
>> James configuration, especially for sending messages.
>>
>> First, my configuration: 3.0 M3 20110509.105439-346 on Ubuntu (Natty)
>> 64-bit.
>>
>> Ports 25 and 143 are open (I've decided to go without encryption until I can
>> get the server functional).
>>
>> I can receive mail from the Internet on port 25. I can access that mail
>> remotely using IMAP on port 143. However, I can NOT send mail using SMTP as
>> my client never connects. SMTP connections from a client on the server
>> succeed. I believe outgoing connections to port 25 from remote clients are
>> being blocked at the client ISP - and in an odd way too because telnet
>> connections to 25 don't fail but rather remain blank.
>>
>> So ... two questions:
>>
>> (1) Is there a way to move the basic unencrypted client-server communication
>> (for sending messages) off port 25 (where it was getting blocked) while
>> leaving SMTP configured to receive server-server communication (which is
>> working fine)?
> The only way is to "relay" email via your ISP's SMTPServer. Ask your
> ISP if thats possible, then you can configure RemoteDelivery the right
> way..
>
>
>> Previously I tried changing the port in smtpserver.xml but it broke my
>> server-server communication and I couldn't receive mail anymore.
>>
>> (2) Is the unencrypted setup really any easier to start with?
>>
>> I am starting to feel like jumping into my start/TLS configuration might be
>> no more work than the port workarounds that might be necessary to test the
>> "basic" (unencrypted) server.
> Well TLS is really straight forward too..
>
>
>> Thanks
>> -Dwayne
>>
> Bye,
> Norman
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Re: SMTP servers, clients and ports
Posted by Norman Maurer <no...@googlemail.com>.
Hi there,
comments inside..
2011/5/10 Dwayne Nelson <e9...@gmail.com>:
> I'm having a difficult time understanding how to set-up and test a basic
> James configuration, especially for sending messages.
>
> First, my configuration: 3.0 M3 20110509.105439-346 on Ubuntu (Natty)
> 64-bit.
>
> Ports 25 and 143 are open (I've decided to go without encryption until I can
> get the server functional).
>
> I can receive mail from the Internet on port 25. I can access that mail
> remotely using IMAP on port 143. However, I can NOT send mail using SMTP as
> my client never connects. SMTP connections from a client on the server
> succeed. I believe outgoing connections to port 25 from remote clients are
> being blocked at the client ISP - and in an odd way too because telnet
> connections to 25 don't fail but rather remain blank.
>
> So ... two questions:
>
> (1) Is there a way to move the basic unencrypted client-server communication
> (for sending messages) off port 25 (where it was getting blocked) while
> leaving SMTP configured to receive server-server communication (which is
> working fine)?
The only way is to "relay" email via your ISP's SMTPServer. Ask your
ISP if thats possible, then you can configure RemoteDelivery the right
way..
>
> Previously I tried changing the port in smtpserver.xml but it broke my
> server-server communication and I couldn't receive mail anymore.
>
> (2) Is the unencrypted setup really any easier to start with?
>
> I am starting to feel like jumping into my start/TLS configuration might be
> no more work than the port workarounds that might be necessary to test the
> "basic" (unencrypted) server.
Well TLS is really straight forward too..
>
> Thanks
> -Dwayne
>
Bye,
Norman
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