Just migrated our server from Sydney to Los Angeles.
Everything has worked so far however we’re having issues with mail delivery with Outlook & G-Mail.
I tested the IP through MX Toolbox, everything was good, I noticed the IP was blocked with Trend Micro.
When I do a diagnostics check with MX Toolbox once again.
I notice it mentions
554 5.7.1 email@example.com: Relay access denied [938 ms]
How can I improve deliverability to Outlook & GMail?
I’ve already re-run sudo mailinabox