Thanks Eukhost
Yes, currently my commercial
website hosting includes a form that directs to PHP code in my CGI bin and only the PHP code contains the email address so as far as I understand it, I am now safe.
Unfortunately the former owner of my company did expose the text email on the web and as always there is the dilemna of
cutting off a communication route that may still be all that older customers have kept in their records.
These days however my biggest concern is the use of my domain name by spoofers who make it look as if I am sending out spam, I have detailed this in another post.
Thanks for the reply
Jon