100 copies of each message (custom domain)

100 copies of each message (custom domain)

I just set up my Zoho mail with a custom domain registered through GoDaddy. Everything is working smoothly, EXCEPT...I get 100 copies of each incoming email. Boom, boom, boom, one after the other. Takes about a minute to get them all.

I have no clue as to what's causing this.

Any help will be most appreciated!

Thanks.