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Conference utrop1::linkworks_v3

Title:LinkWorks V3.0 Notes Conference
Notice:LNX_APO = APO issues, LINKWORKS_V3 = V3.0 issues
Moderator:tacklr.apd.dec.com::TACK_Lm::TACK_L
Created:Tue Jun 28 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2269
Total number of notes:8338

2141.0. "External Mail across a MAIL server" by ROM01::RUSSO (Save a tree ... use Bookreader !) Fri Feb 21 1997 23:21

    I'm going to set up extermal mail on LNX 308 on Digital UNIX for the
    1st time. My customer intranet is linked to Internet using firewalls &
    a dedicated mail server. We want to use external mail only to Intranet &
    Internet while we don't plan to deal with X400 users.
    It is (still) not so clear to me if:
    
    	- Every LNX user MUST have an OS login on LNX server
    	- How I can point to the dedicated mail server (We are not allowed
    		to send/receive mail on Internet directly) 
    
    	Thanks for any hint,
    
    	_Giuseppe
    
    	PS:I know. I've already posted months ago a topic like this,
    	 but now this issue and its constrains are more clear to me.
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2141.1- possible QCAV02::RAVISHANKARNoExplainationsAreNecessary!!Mon Feb 24 1997 04:4427
    
    _Giuseppe,
    
    >>	- Every LNX user MUST have an OS login on LNX server
    	There are two ways to do this
        1. one which requires every user who wants to recieve external
    	   mail to have a OS Login
    	2. another which gets past the problem of giving every user who
    	   wants to receive external mail an OS Login.
    
    	In the later ( #2) procedure you create an account 'lnx' which
    points to the '/var/spool/lnx'. Then you create entries in the
    sendmail.cfg file for LNX similar to those that exist for POP. Then in
    the aliases file you create entries for all thos LinkWorks users who
    want to recieve external mail. Thru the Administration tool in
    LinkWorks provide the LNX alias as the external id for the user but do
    not specify any thing in the OS-Login fields. And it'll work !
    
>>  - How I can point to the dedicated mail server (We are not allowed
>>        		to send/receive mail on Internet directly) 
    For this you'll have to do mail configuration on your system. On the
    DNS server for your internet domain you must add MX records for your
    host which will enable mail delivery to you host.
    
    Hope this helps !
    
    Ravi.
2141.2MX record }:o ???ROM01::RUSSOSave a tree ... use Bookreader !Mon Feb 24 1997 10:235
    Thanks a lot !
    I'mo goint to try it out on a test environment but I don't know what do
    you mean for "MX record".
    
    _Giuseppe 
2141.3hornets nest called DNS.... *8) !QCAV02::RAVISHANKARNoExplainationsAreNecessary!!Tue Feb 25 1997 05:2236
    
    _Giuseppe,
    
    	MX Records are DNS ( Domain Name Service ) records on the DNS
    Primary host which enable external Mail delivery to the said host.
    So for the following conditions...
    
    Host name	: host
    Domain	: domain.com
    FQH	(fully qualified host-name) : host.domain.com
    
    On the Primary DNS Server you'll have an address record for the above
    like
    
    host.domain.com.	IN A	16.158.128.34   (something like this)
    
    So you've got to ask the sys$mangler to add records like
    
    host.domain.com.	IN MX	10	host.domain.com
    
    Like for mail delivery to node atlast.qca.dec.com [16.158.128.150] on
    the primary DNS I've got records like
    
    atlast.qca.dec.com.	IN A	16.158.128.150
    			IN MX	10 atlast.qca.dec.com
    			IN MX	100 mail1.digital.com
    			IN MX	200 mail2.digital.com
                        IN MX	300 mail3.digital.com

    The number before the host provides the priority for delivery.. so this
    previous set implies that first deliver it to atlast then if not to
    mail1 then if not to mail2 and so on....
    
    Have fun !
    
    Ravi.
2141.4FRAIS::SPALTThu Feb 27 1997 18:594
    wondering if there is a way to prevent some users to send ext.mail
    #1: dont give them an os account (also cannot receive mail-which is
    maybe what customer wants (receive only))
    #2: fumble around with sendmail ??     any takers ? thx paule