Imapsync

Imapsync is a tool that allows migrating e-mail accounts via IMAP or their backup.

Arguments

--host1 address of the imap server from which to migrate.
--port1 port to connect to host 1 (default 143).
--user1 username used for authentication on host1.
--host2 address of the imap server to which the migration will be performed.
--port2 port to connect to host 2 (default 143).
--user2 username used to authenticate to host2.

Examples

Migrate all folders (and e-mails) from user@example.net (IMAP imap.example.net, IMAP port 993, SSL) to the user@domain.com account (IMAP host2.domain.com, IMAP port 993, SSL):

imapsync --host1 imap.example.net \
  --port1 993 \
  --user1 user@example.net \
  --ssl1 \
  --host2 host2.doamin.com \
  --user2 user@domain.com \
  --port2 993 \
  --ssl2 \
  --authmech1 PLAIN \
  --authmech2 PLAIN \
  --addheader

Migrate Drafts, Sent, Trash, Spam and INBOX folders from user@example.net (IMAP server imap.example.net, IMAP port 993, SSL) to the user@domain.com account (IMAP server host2.domain.com, IMAP port 993, SSL) using the "." separator when NAMESPACE is not supported:

imapsync --host1 imap.example.net \
  --port1 993 \
  --user1 user@example.net \
  --ssl1 \
  --host2 host2.domain.com \
  --user2 user@domain.com \
  --port2 993 \
  --ssl2 \
  --authmech1 PLAIN \
  - Drafts \ folder
  - Sent folder \
  - Trash \ folder
  - Spam folder \
  - INBOX \ folder
  --authmech2 PLAIN \
  --sep2 "." \
  --prefix2 "" \
  --addheader