How to send email using OSGi service by reading target url and email template path from servlet?

I am not sure what the issue is here. Read the two values from the servlet. Then use the MessageGateway service to send an email:

//Declare a MessageGateway service

        MessageGateway<Email> messageGateway;

        //Set up the Email message

        Email email = new SimpleEmail();

        //Set the mail values

        String emailToRecipients = "scottm@adobe.com";

        String emailCcRecipients = "ratna1.kumar@gmail.com";

        email.addTo(emailToRecipients);

        email.addCc(emailCcRecipients);

        email.setSubject("AEM Custom Step");

        email.setFrom("scottm@adobe.com");

        email.setMsg("This message is to inform you that the AEM content has been deleted");

        //Inject a MessageGateway Service and send the message

        messageGateway = messageGatewayService.getGateway(Email.class);

        // Check the logs to see that messageGateway is not null

        messageGateway.send((Email) email);