I'm running WP 3.4.1 and GForms 1.6.5.1. When I put a long and odd email address in the 'admin notifications' area - either listed after the primary email address separated by a comma or in the BCC field - no email is delivered.
If I remove the long, odd email address, GForms works great and the email is delivered.
Here's the email address I'm trying to mail (with some text changed since this address feeds a CRM)
mail+leads_client_photographers_83abc1239999@mailto.shootq.com
What I've tried so far:
1. Testing to see if I can mail to the address listed using my regular old Gmail account. I can. No warnings, no bounces, and the CRM acknowledges the lead.
2. Testing GForms to see if it works without the email address listed. It does. I can get emails all day long if I use normal looking addresses.
3. Adding the email address in the primary notifications area separated by a comma, i.e.
jason@mycompany.com, mail+leads_client_photographers_83abc1239999@mailto.shootq.com
This does not work. However, if I drop any other email address in after the comma, such as:
jason@mycompany.com, tom@hiscompany.com
Email is delivered just fine.
4. Adding the funky email address listed above in the BCC field. Nothing is delivered.
Based on my tests, I'm thinking that Gravity Forms doesn't like this address for some reason:
mail+leads_client_photographers_83abc1239999@mailto.shootq.com
and doesn't send any email in protest. :-)
Happy to provide WP install access so you can confirm bug.