On 20/03/15 22:11, Jeremy Visser wrote:
On 20/03/15 00:48, Daniel Jitnah wrote:
Outlook 2007 will not login to the new server for POP user that were on the old server. But new users wil same Pop (and smtp setting) will login no problem and have full email functionality. Login (userame and password) using old server account details work on new server as expected after transferring. This sounds to me like an authentication method problem.
The two main authentication methods are LOGIN and PLAIN, but Dovecot only enables PLAIN by default. Outlook, however, remembers the last mechanism that worked and always tries to use that in future. Yes. It does indeed look like Outlook remembers settings for old users and when presented with a new server with different configuration although using same protocol, it refuses to login. Thats why new users work well.
I thought that Outlook did not like the certificates on the new server and although it did pop the certificate acceptance prompt, I was not sure that worked. I thought of copying the certificates from the old server to the new ones. But the oldserver popa3d used no-ssl login, so no certificates. I will try the suggestion below on Monday. My other option is to present the new server to mail clients with new url and ip address (ie: mail2.company.com.au instead of mail.company.com.au). That may force Outlook to forget old settings. Thanks for that. Daniel.
Also you may be attempting to use POP without SSL, (*) which Dovecot also hinders.
In my case I needed to add the following to /etc/dovecot/local.cf during a similar migration to what you described:
disable_plaintext_auth = no auth_mechanisms = plain login
(*) Don't EVER do this. Just because I maintain systems where this is a requirement doesn't mean I think it is a good idea. _______________________________________________ luv-main mailing list luv-main@luv.asn.au http://lists.luv.asn.au/listinfo/luv-main