[Rails] ActionMailer sending mass emails,Suggestion for validation

Hi all, I've used below link to send mass emails to people.I am able to send using the same code without any issues. http://www.tutorialspoint.com/ruby-on-rails/rails-send-email.htm Now,Is that i need to validate Subject,Recipient,Message text boxes.Can you please suggest me how this can be ach

[Rails] ActionMailer sending mass emails,Suggestion for validation

Hi all, I've used below link to send mass emails to people.I am able to send using the same code without any issues. Now,Is that i need to validate Subject,Recipient,Message text boxes.Can you please suggest me how this can be achieved.As i am very new to rails and i beleive ActionRecord cannot b