Hello Thunderbird/Outlook does that, because you change the servername in your configuration.
In order to avoid that, use a reverse proxy and switch on it between your IMAP servers. You can use a dovecot director for that. In your clients you only configure the proxy. That also avoids changing configuration on all of your clients. Kind regards, Christian Mack Am 01.12.21 um 09:31 schrieb Claudio Corvino: > Hi, > > I have two IMAP/LMTP Dovecot server in replica (version 2.3.4.1) both > connected through an IPsec tunnel, I use LDAP/AD for /userdb, /all seems > to be working. > > I have a question: if I switch my Thunderbird/Outlook client to use the > other server I have to download again all the emails, about 10 GB. > > Is there any way to avoid this? Do I have to download again all the > folders every time I switch from node A to node B on my client? > > Thanks! > > Regards > -- Christian Mack Universität Konstanz Kommunikations-, Informations-, Medienzentrum (KIM) Abteilung IT-Dienste Forschung und Lehre 78457 Konstanz +49 7531 88-4416
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