You could set it up and afterwards it instantly sends emails in this type of way you obtain high deliverability. The server will answer with code 250 In case the transaction is thriving. The customer will initiate the termination of the SMTP connection with the Stop command, as well https://www.upwork.com/services/product/development-it-wordpress-installation-with-theme-setup-1438565236566093824?ref=project_share&tier=0