Forwarding local mail to external mail account?

[Matthias Brennwald]

On May 23, 2010, at 3:44 PM, ubuntu-users-request at lists.ubuntu.com wrote:

>> sucessfully send, receive and read local mail on this machine.
> 
> How about non-local mail?
> I.e. can you send to, or receive from external sites?
> If not, then forwarding to such sites (as in the case of your regular
> email address) will likely fail as well.

If I try to send to a my external mail account (not through the forward), the mail does not arrive either. I cannot test if I can send from external sources to my local account because I don't have a machine at hand that could do this.

>> I tried to
>> forward the mail from my local account to my external mail address, where I
>> regularly read my mail. I did this by creating a .forward file in my home
>> directory and put in my regular (external) mail address. However, I the
>> messages never find their way to my external mailbox. Any hints or ideas?
>> How can I check what's going on?
> 
> Log files, is exim attempting to connect to the external MX?

How can I tell? What is MX?

>  Is the
> external server rejecting the mail, or what exactly is going wrong?

How can I tell?

Matthias