Hi ,

You can call action method in your Controller and you can write the Code for sending for Email.

 Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
        /* Strings to hold the email addresses to which you are sending the email.*/
        String[] toAddresses = new String[] {'test@abc.com'};
        String[] ccAddresses = new String[] {'test1@abc.com''};
       
        // Assign the addresses for the To and CC lists to the mail object.
        mail.setToAddresses(toAddresses);
        mail.setCcAddresses(ccAddresses);
       
        // Specify the address used when the recipients reply to the email.
        //mail.setReplyTo('test2@abc.com');
        
        // Specify the name used as the display name.
        mail.setSenderDisplayName('Sample Email);

        // Specify the subject line for your email address.
        mail.setSubject(subject);

        // Set to True if you want to BCC yourself on the email.
        mail.setBccSender(bccSender);

        // Optionally append the salesforce.com email signature to the email.
        // The email address of the user executing the Apex Code will be used.
        mail.setUseSignature(false);

        // Specify the text content of the email.
        mail.setPlainTextBody(body);

        mail.setHtmlBody(body);

        // Send the email you have created.
        Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });  

Regards,

Mohammed Junaid