Sep 29, 2011, 08:13 AM
If the webmail (horde) is getting slow, the common reasons are:
1. Too many filters/white-lists and blacklists
2. Mailbox is too large, contains huge number of emails
3. Too many users logged into Horde simultaneously.
If these are not the case, then :
1. Disable 'CRAM-MD5' by removing "AUTH=CRAM-MD5" from '/etc/courier-imap/imapd' file in the line:
IMAP_CAPABILITY="IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA AUTH=PLAIN IDLE"
2. Restart courier-imap:
# /etc/init.d/courier-imap restart
This will fix the issue.
1. Replace Imap key in registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Mail Enable\Mail Enable\Services\IMAP\Extensions
IMAP4 AUTH=LOGIN IDLE CHILDREN AUTH=CRAM-MD5
MAP4 AUTH=LOGIN CHILDREN AUTH=CRAM-MD5
2. Restart Mail services
Refer ticket: 1202865
Last edited by preethap; Sep 29, 2011 at 08:17 AM.
Reason: For correction
Nov 22, 2011, 04:17 PM
It is very unsafe to disable CRAM-MD5.
Because now you have a security violation against your users and mail-accounts.
You got to secure your mail-server against people who wants to attack and hack your mail-server(s).
My advice will be, "Do not remove CRAM-M5 validation at IMAP and POP3" unless if it's necessary
Normally this function should be removed by Parallels itself, if CRAM-MD5 is out of date.
See also what CRAM-MD5 means.
Last edited by EdwardDekker; Nov 22, 2011 at 04:51 PM.
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