Email Deliverability Issues: PTR, DMARC, and DKIM Setup Needed

Description

I'm looking for an expert to resolve email deliverability issues that are causing my business emails to land in spam folders, particularly for Hotmail/Outlook addresses. The issues identified include setting up a correct Reverse DNS (PTR) record, ensuring the DKIM signature matches the "from" domain, and correcting the DMARC record. These configurations are critical for improving email trust and ensuring our messages reach clients’ inboxes. If you have experience with DNS management, email authentication protocols, and troubleshooting email deliverability, please get in touch.
The domain is 11 months old, registered with GoDaddy, with email services provided by Microsoft. Unfortunately, both providers have been unable to assist, repeatedly directing me back to each other.
I can provide an email deliverability report for reference too.