Ticket management uses two providers for recipients search: EmailAddress and EmailPhone.

Searching for email sometimes takes too long. We should make couple of changes that would improve overall performance.

• if searchTerm contains @, do not search for first and last names, do not search contacts. search exact start and wildcard end
  
• if searchTerm is a valid email (=matches email validation regular expression), search exact match, without wildcards. do not search for first and last names, do not search contacts