Topic: mail from outside (user unknown)

[Michiel de Jager]

Hello,

I have a problem when sending mail to my server.
When I sent mail from a pc within the same network to the server there's no problem.
But when I sent a message from an other pc on the internet to my sme-server
I get the following error in a return mail to the sending computer.

 ----- The following addresses had permanent fatal errors -----


   ----- Transcript of session follows -----
... while talking to madern.mine.nu.:
>>> RCPT To:
<<< 553 Requested action not taken: mailbox name not allowed
550 ... User unknown


What can I do about this?

[robert]

Try sending to michiel@mine.nu or even michiel@mail.mine.nu

[Michiel de Jager]

But my domain name is madern.mine.nu
the sever name is webmail

so complete name of server is webmail.madern.mine.nu

but when i sent to that address I get a message that the host doesn't exist.

robert wrote:
>
> Try sending to michiel@mine.nu or even michiel@mail.mine.nu

[Bob]

Shouldn't you send it to michiel.de.jager@madern.mine.nu?

Because in SME/E-Smith your username is michiel, but usually your email
address is FIRSTNAME.LASTNAME@DOMAIN_NAME.

[Michiel de Jager]

When I sent from a pc within the internal network it works, so the mailaddress is good.


Bob wrote:
>
> Shouldn't you send it to michiel.de.jager@madern.mine.nu?
>
> Because in SME/E-Smith your username is michiel, but usually
> your email
> address is FIRSTNAME.LASTNAME@DOMAIN_NAME.

[robert]

Anything useful in your maillog?

[Bill Talcott]

Bob wrote:
>
> Shouldn't you send it to michiel.de.jager@madern.mine.nu?
>
> Because in SME/E-Smith your username is michiel, but usually
> your email
> address is FIRSTNAME.LASTNAME@DOMAIN_NAME.

The name on the mailbox is "username" as well. SME automatically sets up pseudonyms for firstname.lastname and firstname_lastname, which forward to the username. Just FYI...

[Michiel de Jager]

Nope

robert wrote:
>
> Anything useful in your maillog?

[Bobby]

Could it be a DNS issue? Maybe the server mail is getting directed to from outside is at your ISP or something, but internally it's resolving it ok? Just guessing here.

[Tom Carroll]

Are you using pop3 mail or doing this through the webmail panel?

[Ruusvuu]

In order for my users to be able to SEND mail through my server via OE or something - not webmail/IMP - I need to add their IP as a local network.  They can receive ok without this, but they con only SEND if they are listed as a local network.

HTH

[Tom Carroll]

You should check out Nathan Fowlers pop-before-smtp.  It may be what you are looking for.

http://www.stickit.nu/pop-before-smtp

There is a pretty good thread about it's security here:

http://forums.contribs.org/index.php?topic=14166.msg53873#msg53873


Tom

[Michiel de Jager]

Hello Guys,

SENDING MAIL IS NO PROBLEM.
The problem is that I can't receive any mail from the internet.
And it isn't a DNS problem.

Ruusvuu wrote:
>
> In order for my users to be able to SEND mail through my
> server via OE or something - not webmail/IMP - I need to add
> their IP as a local network.  They can receive ok without
> this, but they con only SEND if they are listed as a local
> network.
>
> HTH

[Michiel de Jager]

Maybe this helps?
This is the connection to my mailserver.
As you can see, the connection is oke, but the mail can't be send.
When I try it from a pc within my network I have no problem.

Please help me, I ran out of ideas.

[Contacting testmadern.mine.nu [213.201.157.230]...]
[Connected]
220 SMTP service ready
HELO hexillion.com
250 Requested mail action okay, completed
VRFY michiel
250 Requested mail action okay, completed
RSET
250 Requested mail action okay, completed
EXPN michiel
250 Requested mail action okay, completed
RSET
250 Requested mail action okay, completed
MAIL FROM:
250 Requested mail action okay, completed
RCPT TO:
553 Requested action not taken: mailbox name not allowed
[Unfavorable reply code, cannot continue]
QUIT
221 SMTP server closing transmission channel
[Connection closed]

[Michiel de Jager]

Maybe interesting;

I am behind a router and a firewall.
I use NAT to translate my local ip to a public ip.
All required ports are open (pop,http,https,smtp)