Customer Log In / Email ! What's Going ON??

This is scaring my pants off... 2 Things...

Note: I have not launched my website and no one purchased a product yet. I've been testing out with different email accounts.

1. For some reason, after you've created an account on my website, then log out, and try to log back in, it WONT let me log in... I Get

"There was a security error when trying to login."

I've read https://www.zen-cart.com/tutorials/index.php?article=312 but I still don't understand it... I don't even know if the article is related to my situation...

2. When I try to send emails to "customer" accounts, I get
   
   "Mail delivery failed: returning message to sender"

No email whatsoever can be sent to "customer" accounts. Also, when I used "contact us", I CANNOT receive messages properly, it gets sent in "spam" folder of my Gmail account.
Is this because my website is using a Gmail account? Or some other issue?

My website is: a n y c i g a r e t t e [dot] c o m

Any help is appreciated...

I can go to the site and as a guest add to cart then create an account ...

Then leave and come back and log back in and what I previously had in my cart is there ...

You might first add to your stylesheet some missing classes:

.hiddenField {
display: none;
}
.visibleField {
display: inline;
}

Then clear your cache and cookies etc. and try it all over again to see if things are working ...

you know what? I couln't figure out the problem so I just uploaded original zencart login.php file.

Now it works find :) I guess the template I was using (from templatemonster) had a login.php file with some missing codes... didn't bother trying to fix but just updated the original zencart login.php file. So that's cleared up

For email problems, I switched to a non-Gmail account because Gmail was seeing all my automated mails as "Spam" and would return it back to me, never reaching my customers.

So both of these problems have been cleared up.

Thank you for your help

ps Anyone use Gmail account for their store and have it set up so that it dosn't mark mails as "spam"?? If so please let me know :)

Thanks