Most of the major mail providers operate spam filtering policies and monitoring of new domain names. Over time your emails will start to arrive in inboxes rather than in junk folders as your domain name builds its reputation. You can assist this process by asking people to send you an email first and responding to that, that can help build an authentic reputation with the mail provider more quickly.
All email hosting we provide include valid SPF, DKIM and DMARC records which are also designed to help prove the authenticity of the sender.