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Exchange 2010 and outside email group

Posted on 2015-02-23
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Last Modified: 2015-03-23
We need to setup a group on our Exchange 2010 server, so our internal users/groups can reach them from our address book.

How can I do this, if they are outside addresses?

I've created a Distribution Group and manually added the addresses, but we still can't see the name in the OAB. Manually typed in the Group address too, but made no difference, still not delivering mail.
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Question by:Harold
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16 Comments
 
LVL 53

Expert Comment

by:Will Szymkowski
ID: 40626550
You can add external contacts (that are in your exchange environment) to a distribution group. Then when you email the distribution group the external users will receive the email.

if you are not seeing this in the GAL it is because you are using OAB (offline address book). This only updates 1 a day otherwise if you specifically specify it to update more frequently.

If you use OWA on Outlook Client with cached mode disabled you should see the group in the GAL.

Will.
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Author Comment

by:Harold
ID: 40626630
@Will: "that are in your exchange environment" There external, how do I get them there if there not listed.
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Accepted Solution

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Will Szymkowski earned 2000 total points
ID: 40626711
You need to individually create Mail Contacts in your Exchange Environment. When you do this you specify the external mail contact address. Once these contacts are in your Exchange environment you can add them to your DL's as well.

Make sure that "require authentication" is removed from the DL's that you use for external contacts to ensure that people from the outside can send to them without failing.

Will.
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Author Comment

by:Harold
ID: 40626753
@Will: So I have to create them an account in AD?

"Make sure that "require authentication" is removed from the DL's that you use for external contacts to ensure that people from the outside can send to them without failing. "

1) Where do you set the Require Authentication?

2) "for external contacts to ensure that people from the outside can send to them without failing."  People from the outside? The addresses are external, why would someone send mail through our server to get to the outside address?
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LVL 53

Expert Comment

by:Will Szymkowski
ID: 40627260
In order to add external email addresses to a DL that is internal you need to create mail contacts within your Exchange environment. Once you have these setup you can then add these contacts to your internal DL's.

Require authentication is configured on the properties of the DL itself.

Will.

Will.
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Author Comment

by:Harold
ID: 40649968
@Will: I have to create these outside accounts internal e-mail addresses? Isn't that defeating the purpose, if we need it going to gmail, outlook and other outside mail services?
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Expert Comment

by:Will Szymkowski
ID: 40649983
Isn't that defeating the purpose, if we need it going to gmail, outlook and other outside mail services?

If you want contacts to be available in the GAL or be able to add them to your Exchange DL's you have to add them to your Exchange environment. You create the External Contacts using their external smtp address. Once they are on your Exchange server, you can open the DL and add those new External Contacts to this list.

You have to have a reference in Exchange in order to add it to a DL.

Will.
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Author Comment

by:Harold
ID: 40650005
@Will: ya, did that and still no mail is going to the list. I added them to Exchange and modified the E-mail Address <tab> and set their external addresses as default SMTP, but still nothing. I put setup my gmail account and added myself to the list, so I could make sure I get the mail.

I had just setup another internal DL and it's working fine for those user, just the DL to the external, don't have something right.
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Author Comment

by:Harold
ID: 40662042
I create Exchange accounts for these external sales, went to E-mail Addresses, added their external addresses, set to default reply. Added them plus myself to this group, which have our external addresses and I can buy and e-mail. Nothing makes from this group, NOR can you send them an e-mail directly. Never makes it anywhere, with no returns or bounces.
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Expert Comment

by:Will Szymkowski
ID: 40662060
On the distribution group do you have "Require Authentication" enabled? This setting is enabled by default so if you try unchecking this setting and test it again. I have done this several times using external contacts in DL's with no issues. So i am not sure what is going on with your distribution group.

Will.
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Author Comment

by:Harold
ID: 40662072
I do not see anything for "Require Authentication", where is this setting?
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Author Comment

by:Harold
ID: 40662107
If you're referring to this, yes I did this.

Go to the distribution list's Properties.
Click on the Mail Flow Settings tab.
Double-click Message Delivery Restrictions.
Uncheck the box "Require that all senders are authenticated."


Does it matter what the group Type, is? Now Security/Global
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Author Comment

by:Harold
ID: 40663248
@Will, is this the setting? If so, yes, i removed the check, so should be disabled. Unless you're talking about another area.
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Expert Comment

by:Will Szymkowski
ID: 40663257
This should not matter. However, when you create distribution groups within Exchange the are set to Universal. Might want to give that a shot.

Not sure why this is not working, as stated this is very straightforward and should work with no issues. if you have in fact created an External Contact within your Exchange environment and added it to this group.

Will.
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Author Comment

by:Harold
ID: 40663424
I'll change to Universal, group type Dist, correct. I even added my gmail account to an account I created for me to test. Since adding this account w/my gmail account setup within it, I no longer receive e-mails from within our domain. Even, if I remove it, which I did and still no mail I send to my gmail account makes it and I  get no returns.
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Author Closing Comment

by:Harold
ID: 40683409
Couldn't figure out where this "Mail Contact" was, got it now.  Thanks
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