Need help setting up SMTP relay

[ScottChapman]

I am able to send email just fine using the web interface. But I am getting relay access denied when I try to send email using an email client.

Essentially what I would like to do is allow my clients to be able to use the zimbra SMTP server as their SMTP server for outgoing email from anywhere on the internet.

So, I want it to require authentication, and I want to be able to control what return email addresses are valid (I am hosting a few domains, so I would want to do something like *@<domain1>.com,*@<domain2>.com

Can someone help?

I have read through much of the wiki, but I got lost...

[uxbod]

To links to have a read of. Even though it says Auth problems it should help in the configuration :-

SMTP Auth Problems - Zimbra :: Wiki
ZimbraMtaMyNetworks - Zimbra :: Wiki

Hope these are of help to you.

[ScottChapman]

Thanks. I read through the first one. And was able to do the first two steps (enabling auth, but I am going to leave tls off for now).

But I am not sure I need to do anything for steps 3 & 4. I am just running a single server which is going to host a few domains. I assume this is NOT a multi-node confirguation.

But I am still getting the same message.

I can telnet to the server just fine.

[ScottChapman]

Also, the MyNetworks setting appears to accept IP address ranges. But that doesn't appear to be very useful since I want to be able to use the SMTP relay from my laptop... When I am traveling...

[SiliconJunkie]

I am able to send email just fine using the web interface. But I am getting relay access denied when I try to send email using an email client.

Essentially what I would like to do is allow my clients to be able to use the zimbra SMTP server as their SMTP server for outgoing email from anywhere on the internet.

So, I want it to require authentication, and I want to be able to control what return email addresses are valid (I am hosting a few domains, so I would want to do something like *@<domain1>.com,*@<domain2>.com

Can someone help?

I have read through much of the wiki, but I got lost...

I am having the exact same problem with my Zimbra server.

If I use the HTTP (web) interface and connect, I can create and send messages to external mail servers all day long. Also, inbound messages get delivered without any trouble.

However, if I use Outlook (SMTP/POP3), or Zimbra Desktop (HTTP) to connect to the Zimbra server, I can create the message, but it never gets delivered.

Messages created in Oulook get bounced with a "relaying denied from this location" error; whereas messages created in Zimbra Desktop end up in the Deferred queue, and just sit there.

I'm with Scott here. I need some help to get this working. A significant portion of my workforce travels, and requires access to the mail server from anywhere in the world. Being able to use Outlook or Zimbra Desktop for off-line access to their messages is critical.

A little assistance in how to accomplish this would be GREATLY appreciated.

Yes, I've searched the Wiki's and such, but I'm somewhat of a Linux neophyte, and definitely a Zimbra noob.

Many thanks in advance for anyone's help!

------------

P.S.: I think this will be an awesome solution if I can work through this little problem.

[ScottChapman]

You should make sure that you have zimbraMtaAuthEnabled set to TRUE.

Do this by running:
zmprov ms <your server> zimbraMtaAuthEnabled TRUE

I would recommend disabling Tls ONLY:
zmprov ms <server name> zimbraMtaTlsAuthOnly FALSE

THen in your client, make sure you are connecting securely and requiring authentication.

[SiliconJunkie]

You should make sure that you have zimbraMtaAuthEnabled set to TRUE.

Do this by running:
zmprov ms <your server> zimbraMtaAuthEnabled TRUE

I would recommend disabling Tls ONLY:
zmprov ms <server name> zimbraMtaTlsAuthOnly FALSE

THen in your client, make sure you are connecting securely and requiring authentication.

Yep - everything is set this way.

[phoenix]

Also, the MyNetworks setting appears to accept IP address ranges. But that doesn't appear to be very useful since I want to be able to use the SMTP relay from my laptop... When I am traveling...

That isn't what mynetworks is for. It's actually a setting to define Trusted IPs that can send messages via your server (for instance, another LAN subnet at a subsidiary). For example, if you have a single server it should only consist of the following entries:

127.0.0.0/8 192.168.1.0/24

which would be the loopback and your LAN subnet. Any external users to your system should authenticate against the Zimbra server and they will be allowed to send mail anywhere. There are several threads in the forums discussing problem and solutions for problems you may encounter.

[ScottChapman]

Got it. thanks. I misunderstood.