MX Records Troubleshooting with Gmail

I am experiencing issues with my MX records and Gmail. I need a DNS expert to help me troubleshoot these issues so my email can function properly.

Ideal skills and experience for the job include:
- Proficiency in understanding and managing MX records
- Expertise in DNS troubleshooting
- Experience working with Gmail's email services

Please provide a detailed plan on how you would approach this issue.