Email Delivery Issue

Email Delivery Issue

Dear Zoho Team,

I have recently migrated our email hosting to Zoho and having delivery issues and really hoping that this is a initial hiccup. The said domain is gayatrirestaurant.com and having issues receiving email from multiple domains. To assist in troubleshooting, i have listed one sample issue and have attached logs. I am sending an email from PHPmailer and able receive emails by recipient of gmail accounts without any issue. However recipients of zoho hosted domain users not receiving those emails.

In addition to the logs, these are the domains that our users have having trouble receiving emails from them.

@kitchenconnections.com.my
@mohanmc.com
@hhp.com.sg
@cateringsolutions.com.sg

Appreciate if any of you could assist rapidly.

Regards
Hari