I'm actually having the opposite problem. setting the board to user activation works fine. If i set it to admin activation I (the admin) don't get the emails.
I did a little testing myself. I have several email accounts setup for the domain. I have successfully sent email back and forth between email accounts on the server. The user gets the email after registering, whether it is set to admin authorization or user. So it would seem only the admins are not recieving the email.
Also the site has ben up and running for 18 months it's just recently that this has become an issue.
Your phpBB board URL: Forum
Template(s) used: subblack, wowmoonclawo1, Wowhorde, WowAlliance
Any and all MODs: easymod, xfire, itemstats, phpfetch all (for the website), Extreme Styles,Callite,Album, A ranks mod, possibly 1 or 2 others
Do you use a port of phpBB:
Version of phpBB: 2.17
Version of PHP: ver 4.4.0
Which database server and version: MySql ver 4.0.22
Did someone install this for you/who: no
Is this an upgrade/from what to what: no
Is this a conversion/from what to what: no
Have you searched for your problem: yep
If so, what terms did you try:
State the nature of your problem: registration emain to admin
Do you have a test account for us: no but can make one up quick
If so, please have it ready in case a Support Team Member asks for it.