On 3.7.2012, at 9.38, Kaya Saman wrote: > So if I look at a different authentication mechanism say LDAP would it > improve performance?
I doubt authentication has anything to do with why Outlook downloads mails slowly. But you could configure Outlook to use plaintext authentication instead of NTLM authentication to see if it makes a difference. No need to change anything on Dovecot side then.
