UPDATE: only one valid solution is Symphony mailer https://symfony.com/doc/current/mailer.html
PHPMailer has no support of NTLM authentication.
And I finally could not find any alternative that should use SMTP protocol and user authentication via NTLM.
Do you know anybody how to solve sending e-mail to Exchange 2016 servet using SMTP proctocol that requires user login by command "AUTH NTLM"