[ic] orders not completing

[Davideth]

New problem popped up with 5.10

Customer order received and payment processed, emails generated, but not 
added to userbd, transactions, or orderline.

92.xx.xx.x48 WNbU2VfE:92.xx.xx.x48 - [13/December/2017:15:02:30 -0600] 
hucp /cgi-bin/cart.cgi/ord/finalize Report posted HCZ55264 pzcom ... -- 
http_user_agent=Mozilla/5.0 (Linux; Android 4.4.2; GT-P5210 
Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.84 
Safari/537.36 remote_addr=92.xx.xx.x48
92.xx.xx.x48 WNbU2VfE:92.xx.xx.x48 - [13/December/2017:15:02:30 -0600] 
hucp /cgi-bin/cart.cgi/ord/finalize Invalid header given to email tag: 
for your order #[value mv_order_number]!"
92.xx.xx.x48 WNbU2VfE:92.xx.xx.x48 - [13/December/2017:15:02:30 -0600] 
hucp /cgi-bin/cart.cgi/ord/finalize Invalid header given to email 
tag:         from=|"Hulda Clark Zapper Co - ParaZapper Customer Service" 
<orders (at) paradevices.com>| Note: @ symbol replaced for security
92.xx.xx.x48 WNbU2VfE:92.xx.xx.x48 - [13/December/2017:15:02:30 -0600] 
hucp /cgi-bin/cart.cgi/ord/finalize Invalid header given to email tag: 
     Reply-to:="[value email
92.xx.xx.x48 WNbU2VfE:92.xx.xx.x48 - [13/December/2017:15:02:30 -0600] 
hucp /cgi-bin/cart.cgi/ord/finalize Unable to send mail using 
/usr/sbin/sendmail