Jan 24 2020 01:02 PM - edited Jan 24 2020 01:12 PM
I am having trouble getting a new Distribution List group to work properly. I have setup in the admin portal under groups the distribution group email/alias, etc, and have checked the option "Allow External Senders to Email this Group". I verified a couple of times this box is in fact checked.
Everything is saved and its been a couple hours since setup.
When I send an email from my internal address to the distribution list address, it works fine - the distribution list delivers to the distribution list members. However, if I send to the list email address from an external address, I get a bounce back error "553 sorry, no mailbox here by that name. ulc: , rcp: 0001. (#5.7.1)" and no message is delivered.
Does it take time for things to propagate through the DNS or AD or something? In AD control, the distribution list shows as active and running. It works fine as I said internally... it just won't work for external email addresses... which is a requirement for what I am trying to do with it.
Any thoughts or suggestions?
Jan 24 2020 02:21 PM
Jan 24 2020 02:23 PM
@Chris Webb Yes that is correct - I sent the test from a gmail account. I also had someone else try from a gmail account, same result... but if sent from an internal account, it works like a champ.
Jan 24 2020 02:25 PM
Jan 24 2020 02:27 PM - edited Jan 24 2020 02:28 PM
@Chris Webb I have no idea... but I have 3 other distro lists setup in the same manner, and they work just fine. Literally all have the exact same settings. The other 3 receive mail from external addresses with no problem. It has been a year or so since I set those up, but I just don't recall it taking more than a few minutes to work once set. It has been the better part of a day at this point and still not working.
I am happy to check some settings if you have the patience to tell me how to determine how my mail is routed, but I am not an IT guy, just a small business guy with no IT support :).
Jan 24 2020 02:40 PM
Jan 24 2020 02:49 PM - edited Jan 24 2020 02:56 PM
@Chris Webb I am not exactly sure how it is configured. We have a virtual server that is hosted offsite, but that would be the same as on prem? But the source for my users is all 'Windows Server AD'. I attached a screen of the groups. efax is the new one that is not working... but all show a source of 'cloud'.
Here is a snip of the bounce back I get, not sure if that helps anyone.
Jan 24 2020 02:56 PM
Jan 24 2020 02:58 PM - edited Jan 24 2020 03:00 PM
@Chris Webb here is the setting in the admin panel:
And if I go to the "More Settings" link, it shows up in the exchange center as below:
Jan 24 2020 03:00 PM
Jan 24 2020 03:00 PM
Jan 24 2020 03:04 PM
Jan 24 2020 03:07 PM
@Chris Webb It does correctly show under email options. H
ow do I go about creating another alias? I add a new address under email options? can it just be any address?
Jan 24 2020 03:10 PM
Jan 24 2020 03:12 PM
@Chris Webb Yes that is correct. All the same domain.
I created the new address (faxbox@...)... same results. Bounce back from external. Delivered internal.
Jan 24 2020 03:16 PM
Jan 24 2020 03:21 PM
@Chris Webb ok, gave that a try, still no joy, was a good idea though, don't know why I didn't try earlier.
I really appreciate your help - I think at this point I am just going to let it sit over night and see if something propagates to make it work tomorrow. I'll certainly update back here i anything changes.
Jan 24 2020 03:29 PM
Sep 05 2020 04:15 AM
Mar 22 2021 03:35 AM
For me it worked removing the "allow external senders" wait 5 minutes enable it again even it was a brand new group