On Mon, 18 Apr 2022, Paul Kudla (SCOM.CA Internet) wrote:
As for the 200,000+ emails in the inbox no email system was ever designed for
that - ever.
...
no system will support 200,000 + emails, even if the server can handle that
and running imap where you only download the headers the email
this is not the answer you are looking for but comes from years and
years of experience with mail servers in general (cyrus first then dovecot)
First off imap clients can handle emails counts but vary on performance
1. outlook for example is completely useless above 1000 count per
folder/sub
