Unable to login into the webmail (e.g. Horde or Roundcube)
webmail.example.comafter migration due to the following error:
Password reset did not resolve the issue.
DNS propagation tool, e.g. whatsmydns.net, and shows that
webmail.example.comstill resolves to the IP address of the previous server for several locations.
DNS records for
webmail.example.com are not fully propagated worldwide yet and still pointing to old server:
# dig +short webmail.example.com
Where 203.0.113.2 is IP is address of old server.
Wait up to 48 hours until new records are available on all global DNS servers.