MX records helps

MX records helps

I recently reached out to support for help with my email sending but not receiving. 
I only use Zoho webmail and when it's finally working the IOS app. 

Support replied with: 

Please delete the existing MX records in your DNS manager:

dc-a3f9a0febcf8.victorymerchant.com

For the life of me I cannot find this stinking entry and I have looked everywhere twice...

Hosting (WHM) and domain reg. (1and1) are seperate...

Any help appreicated