Hello,

I am trying to migrate a domain from G Suite using dsync and am not clear on how to configure so I am getting failures.

This is the configuration in dovecot.conf:

imapc_host = imap.gmail.com imapc_port = 993 imapc_password = 1234 imapc_ssl = imaps imapc_ssl_verify = yes imapc_features = gmail-migration

I also tried with imapc_ssl_verify commented.

For simplicity, both the username and password are the same for G Suite and Dovecot and are verified to access the G Suite account with other tools.

Here is the command (from the wiki) and output:

# doveadm backup -a 'virtual/All' -O '-$GmailHaveLabels' -R -u user@example.com imapc: dsync(user@example.com): Info: imapc(imap.gmail.com:993): Connected to 2607:f8b0:4003:c0f::6c:993 (local IPv6:port) dsync(user@example.com): Warning: imapc(imap.gmail.com:993): Server disconnected unexpectedly: SSL_connect() failed: error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure: SSL alert number 40 - reconnecting (delay 0 ms) dsync(user@example.com): Info: imapc(imap.gmail.com:993): Connected to 74.125.30.109:993 (local IPv4:port) dsync(user@example.com): Error: imapc(imap.gmail.com:993): Server disconnected unexpectedly: SSL_connect() failed: error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure: SSL alert number 40 - disconnecting dsync(user@example.com): Error: User initialization failed: imapc: Login to imap.gmail.com failed: Disconnected from server

In reading through the wiki, it seems I am missing something, but I can't figure out what is missing and internet searches don't provide further useful information on the dovecot tools.

Thank you,

Paul