I have a few DA servers but there are in various versions.
There are already some clients in each server.
How can I upgrade DA version without any change to our clients?
(in every aspects, eg, POP3, pop3 webmail, IMAP, IMAP webmail, SMTP etc)
How should I plan? How should I do?
Thank you
Stanley
There are already some clients in each server.
How can I upgrade DA version without any change to our clients?
(in every aspects, eg, POP3, pop3 webmail, IMAP, IMAP webmail, SMTP etc)
How should I plan? How should I do?
Thank you
Stanley