The best tip I can give is to never do business with them, or transfer all your domains out to another registrar.
But in case you are still with them, here's another tip. Whenever you make a change to your domain (such as changing DNS), you will get an email from registerfly confirming the change.
If you do not receive an email with 10 minutes, then that means your edit did not go through. You will have to log back into registerfly and resubmit your edits. Yes this is very frustrating. I had to resubmit my DNS change over 20 times before I got the confirmation email.
Funny thing. I've changed DNS for my only domain left there a couple of days ago. Change went VERY smoothly (it was reflected in the registry within seconds). However, I never received any emails to confirm/deny it...
I think if you only change one domain name server at a time then it probably works but if you change more than one by using the bulk tool then it will never work and you will have to submit a ticket and wait for weeks.
It took me 2 weeks to get my name servers changed over on a bunch of domains and that was the time it took them to read my ticket and do it manually from their end. So if you plan to change name servers on more than one domain just make sure you do it 2 weeks ahead of the time you want it to happen. It sounds crazy and yes it is but you also have to be crazy to register any more domains with this pathetic company.
Mine was received in my google email hosting account. How about whitelisting the
email addy to see if it'll make any difference?
I think I hijacked the thread with this mostly useless discussion... Sorry for that.
Dave, to answer your question... My mails are NOT filtered in any way. My mail domain has 3 MX records at different networks in different countries. It is as straightforward and reliable as possible. Usually, when I am not receiving anything it means it never has been sent... But, as I have pointed above, we're discussing wrong question here...