I like how Gmail, Thunderbird, KMail, etc. they all auto-wrap lines at 78 characters. It makes email more readable and look clean.
There's even a standards for it which I am not sure why Zoho ignores.
>There are two limits that this standard places on the number of
characters in a line. Each line of characters MUST be no more than
998 characters, and SHOULD be no more than 78 characters, excluding
the CRLF.
Regards,
Sudhir Khanger,
sudhirkhanger.com.