I need to setup some automatic flag, which will mark outgoing email from Zimbra and popup the 'read confirmation' request on the reciever site. This is common in Outlook and Thunderbird, and probably in other mailers.
I think this bugreport is about this feature: Bug 7257 – Support read receipts in webmail which should be available in version 6.x
There are some portitions of commands in comment #140, but I'm not able to make it work. I've tried this:
I'm almost sure that I'm doing something wrong. Thank you for any advice.Code:zimbra$ zmprov modifyCos default zimbraMailPrefSendReadReceipts prompt ERROR: account.INVALID_ATTR_NAME (invalid attr name: [LDAP: error code 17 - zimbraMailPrefSendReadReceipts: attribute type undefined])