poll pop.zoho.com  proto POP3 user hputn3  password MANGLED

   SSL
   fetchall
   no keep
   no rewrite
   mda "/usr/bin/procmail -f %F -d %T";

-----------------------------

I tried several variations on the user name syntax.  The one in the above

fetchmail line is the raw user ID I need to login to zoho.

I also tired:

    hputn3@zoho

    hputn3@zoho.com

    hputn3@zohomail.com

(I will include the full fetchmailrc and full output in an attachment)

All failed as seen in this `tail' of fetchmail output:

  [...]

    fetchmail: POP3< +OK POP3 mx.zohomail.com v1.0 server ready <337387.1635564926567@mx.zohomail.com>
    fetchmail: POP3> CAPA
    fetchmail: POP3< +OK
    fetchmail: POP3< USER
    fetchmail: POP3< TOP
    fetchmail: POP3< UIDL
    fetchmail: POP3< .
    fetchmail: POP3> USER hputn3
    fetchmail: POP3< +OK
    fetchmail: POP3> PASS *
    fetchmail: POP3< -ERR Service Unavailable
    fetchmail: Service Unavailable
    fetchmail: Authorization failure on hputn3@pop.zoho.com
    fetchmail: For help, see http://www.fetchmail.info/fetchmail-FAQ.html#R15
    fetchmail: POP3> QUIT
    fetchmail: POP3< +OK mx.zohomail.com Service closing transmission channel
    fetchmail: 6.4.16 querying pop.zoho.com (protocol POP3) at Fri 29 Oct 2021 11:35:26 PM EDT: poll completed
  [...]