9 Apr
2012
9 Apr
'12
10:49 a.m.
On 2012-04-06, Thomas von Eyben thomasvoneyben@gmail.com wrote:
I am seeing a >10x as slow performance when trying to complete a "send/receive" from an Outlook 2010 client to Dovecot via IMAP, but only when the LAN is fully loaded with other traffic, EG file copying. It seems the problem is when outlook is trying to identify folders that have changed since last "send/receive" thus traversing the hierachy.
Not sure why it would only affect Outlook clients, but if your switches are managed, you might like to check if flow control is enabled and, if so, try disabling it.