Attachments sent in Zoho mail is corrupted

Attachments sent in Zoho mail is corrupted

Hello,

I am facing this issue for a few months now, any attachments i send out from my Zoho mailbox (excel, word, image)gets corrupted. I am not able to view it from my sent email. My recipients always revert saying they cant open the attachment it is corrupted

I send the same attachments to the same recipents, using the same laptop from my gmail account and they are able to use the attachments fine

pls help resolve this problem

regards
vinaya