WordPress + Tribulant Newsletter plugin solve some issues

The site is specialized in Testaments + Last-wills. We need a professional with excellent skills in WP + PHP + Newsletter plugin from Tribulant. There are some problems that must solved. 1) Spam email: emails setup with newsletter plugin are recognized as spam in [login to view URL] and [login to view URL], fix this. 2) Login data: if a relative or relation is invited via mail and he accepted it with clicking on the link in the invitation mail, he should get a mail with his login data. This he does not get anymore. All the mails are sendet with correct newsletter template assigned by a var. Somehow the action of sending login-data is not found/started. $GLOBALS['mm_email_templates'] = array( 'invite' => array('en' => 11, '0' => 13, 'nl' => 13), 'login' => array('en' => 12, '0' => 14, 'nl' => 14), 'invitation' => array('en' => 16, '0' => 15, 'nl' => 15)); 3) WordPress shortcodes: shortcodes are not recognized by this newsletter plugin, like [wpmlblogname]. None of the templates shows it. 4) System mails: a view system mails must get a template. setup forgotten password (template is present) WordPress 4.3 running Avada Child theme. Newsletters plugin Version 4.5.5.4.2 | By Tribulant Software Start: today Finish: Saterday 22 August Max hours: 2