OT: POP and virtual users

[Ken A]

On 3/30/2010 12:46 PM, Steve Campbell wrote:
>
>
> Ken A wrote:
>>
>>
>> On 3/30/2010 7:22 AM, Steve Campbell wrote:
>>> I've got a question about how POP works (if at all) with sendmail
>>> virtual users.
>>>
>>> Here's the situation:
>>> I've got a user that has an account on one of our hosted domains. That
>>> user's account is "mail at thedomain.com". For now, it's on another server,
>>> but I'm getting ready to move it to a more current server. I'll create a
>>> virtual user in the virtusertable "mail at thedomain.com
>>> mailxxx at thedomain.com" so as not to interfere with anything related to
>>> "mail" on the server.
>>
>> Sendmail virtualuser table maps/resolves addressA at customerdomain.tld
>> to addressB at localhost, assuming you are on a mail hub where pop3
>> lives. customerdomain.tld also needs to be in the local-host-names file.
>>
>>>
>>> When I set up the account on the user's machine, I'm having problems
>>> seeing how I should set this up. They only use our server for incoming
>>> mail, and use another ISP for outgoing. So here's the snag. The account
>>> will remain mail at thedomain.com. Setting up their SMTP server is not a
>>> problem as it will stay the same. When I set up the POP server pointing
>>> to our server, when the MUA requests retrieval of mail, will POP use the
>>> virtual table entry "mail at thedomain.com" to retrieve mail from the
>>> mailxxx mailbox? These accounts are UNIX users on the server, BTW.
>>>
>>
>> No, the user would be checking the addressB unix account. There are
>> other ways to do this, of course, but this is the standard sendmail
>> virtual user setup.
>>
>>
>>> If not, how is the best way to set up all of this? Up until now, I've
>>> not needed to worry about this problem, and the old server users
>>> linuxconf (really old, huh?) to handle this. I don't think the user
>>> really wants to change their email account name, and since they're
>>> paying for it, I kinda have to oblige.
>>
>> Users generally just care about their email addresses, but ymmv.
>> Your pop server may be able to alias things for you too.
>> http://wiki2.dovecot.org/VirtualUsers
>>
>> Ken
>>
>>>
>>> Thanks for any enlightenment.
>>>
>>> Steve Campbell
>>>
>>
> Thanks Ken,
>
> So maybe I'm making this a little more complicated than it really is. I
> guess I never really thought much about what the setting in the
> properties of an email account really meant, since most of the time, all
> user's info remained the same.
>
> Just to verify what I think I finally am seeing, there are 3 entries in
> any account setup. The email address, the reply address, and the server
> name/password. The first two would/should be the email account that the
> world would see as a from and whom they would send email to (in essence,
> the lhs of the virtual table entry). The server name/password would be
> the name that is associated with the rhs of the virtual table entry.

right.

>
> Since most of the time here, all 3 have the same "name" part, or the
> part before the "@", I never really considered how the 3 might be used
> in other situations, other than the reply address.
>
> This was the way I had planned on using this, but thought that maybe POP
> just might use the virtual table entry. The older linuxconf setup used a
> modified vpop to handle this.

RH 7.x ?
We still have one or two of those around. Not doing mail though! :-)
Ken

>
> Thanks again,
>
> steve
>
>
>

-- 
Ken Anderson
Pacific Internet - http://www.pacific.net