confirmations not being sent out

On this shopping cart: sanisign.com/catalog, the admin stopped sending out email notifications for new orders, invoices to clients and new accounts created. Orders are being saved in the admin but no email is being sent.

Recently we updated our server and I made sure sendmail was turned on. We have a lot of other shopping carts on the same server and all of thiers is still functioning. Are there any solutions?

What are your email settings in the Admin? What version of Zen Cart?

I am usising 1.3.6
The settings in the email option in the admin are as follows:

Title Value Action
E-Mail Transport Method sendmail
E-Mail Linefeeds LF
Use MIME HTML When Sending Emails false
Send E-Mails true
Verify E-Mail Addresses Through DNS false
Email Archiving Active? true
E-Mail Friendly-Errors false
Email Address (Displayed to Contact you) [email protected], [email protected]
Email Address (sent FROM) [email protected]
Emails must send from known domain? Yes
Email Admin Format? HTML
Send Copy of Order Confirmation Emails To [email protected],
Send Copy of Create Account Emails To - Status 1
Send Copy of Create Account Emails To [email protected]
Send Copy of Tell a Friend Emails To - Status 0
Send Copy of Tell a Friend Emails To [email protected]
Send Copy of Customer GV Send Emails To - Status 0
Send Copy of Customer GV Send Emails To [email protected]
Send Copy of Admin GV Mail Emails To - Status 0
Send Copy of Customer Admin GV Mail Emails To [email protected]
Send Copy of Admin Discount Coupon Mail Emails To - Status 0
Send Copy of Customer Admin Discount Coupon Mail Emails To [email protected]
Send Copy of Admin Orders Status Emails To - Status 0
Send Copy of Admin Orders Status Emails To [email protected], [email protected]
Send Notice of Pending Reviews Emails To - Status 0
Send Notice of Pending Reviews Emails To [email protected]
Set "Contact Us" Email Dropdown List
Allow Guest To Tell A Friend false
Contact Us - Show Store Name and Address 1
Send Low Stock Emails 0
Send Low Stock Emails To [email protected]
Display "Newsletter Unsubscribe" Link? true
Audience-Select Count Display true
SMTP Email Account Mailbox YourEmailAccountNameHere
SMTP Email Account Password YourPasswordHere
SMTP Email Mail Host mail.EnterYourDomain.com
SMTP Email Mail Server Port 25
Convert currencies for Text emails £,£:€,€
Send SMS Message when a sale is made true

You might consider trying "PHP" instead of "sendmail" for your email transport method. It's likely that your server upgrade altered the way sendmail works, and would be safer to let the PHP configuration handle it for you.

that was it. I wonder why all of a sudden it stopped working on sendmail and works on php when all of the other ones still work on sendmail.