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AERC-IMAP(5) File Formats Manual AERC-IMAP(5) NAME aerc-imap - IMAP configuration for aerc(1) SYNOPSIS aerc implements the IMAP protocol as specified by RFC 3501, with the following IMAP extensions: • IDLE (RFC 2177) • LIST-STATUS (RFC 5819) • X-GM-EXT-1 (Gmail) CONFIGURATION Basic IMAP configuration may be done interactively with the :new-ac- count command. In accounts.conf (see aerc-accounts(5)), the following IMAP-specific options are available: source = <scheme>://<username>[:<password>]@<host- name>[:<port>]?[<oauth2_params>] Remember that all fields must be URL encoded. The @ symbol, when URL encoded, is %40. Possible values of <scheme> are: imap IMAP with STARTTLS imap+insecure IMAP without STARTTLS imaps IMAP with TLS/SSL imaps+insecure IMAP with TLS/SSL, skipping certificate verification imaps+oauthbearer IMAP with TLS/SSL using OAUTHBEARER Authentication <oauth2_params>: If specified and a token_endpoint is provided, the configured password is used as a refresh token to obtain an access token. If token_endpoint is omitted, refresh token exchange is skipped, and the password acts like an access token instead. • token_endpoint (optional) • client_id (optional) • client_secret (optional) • scope (optional) Example: imaps+oauthbearer://...?token_end- point=https://...&client_id= imaps+xoauth2 IMAP with TLS/SSL using XOAUTH2 Authentication. Parameters are the same as OAUTHBEARER. source-cred-cmd = <command> Specifies the command to run to get the password for the IMAP ac- count. This command will be run using sh -c command. If a password is specified in the source option, the password will take prece- dence over this command. Example: source-cred-cmd = pass hostname/username connection-timeout = <duration> Maximum delay to establish a connection to the IMAP server. See https://pkg.go.dev/time#ParseDuration. Default: 90s keepalive-period = <duration> The interval between the last data packet sent (simple ACKs are not considered data) and the first keepalive probe. After the connec- tion is marked to need keepalive, this counter is not used any fur- ther. See https://pkg.go.dev/time#ParseDuration. By default, the system tcp socket settings are used. keepalive-probes = <int> The number of unacknowledged probes to send before considering the connection dead and notifying the application layer. By default, the system tcp socket settings are used. If keepalive- period is specified, this option defaults to 3 probes. This option is only supported on linux. On other platforms, it will be ignored. keepalive-interval = <duration> The interval between subsequential keepalive probes, regardless of what the connection has exchanged in the meantime. Fractional sec- onds are truncated. By default, the system tcp socket settings are used. If keepalive- period is specified, this option defaults to 3s. This option is only supported on linux. On other platforms, it will be ignored. check-mail-include = <folder1,folder2,folder3...> Specifies the comma separated list of folders to include when checking for new mail with :check-mail. Names prefixed with ~ are interpreted as regular expressions. This setting is ignored if your IMAP server supports the LIST-STATUS command, in which case all folders will be checked. By default, all folders are included. check-mail-exclude = <folder1,folder2,folder3...> Specifies the comma separated list of folders to exclude when checking for new mail with :check-mail. Names prefixed with ~ are interpreted as regular expressions. This setting is ignored if your IMAP server supports the LIST-STATUS command, in which case all folders will be checked. Note that this overrides anything from check-mail-include. By default, no folders are excluded. cache-headers = true|false If set to true, headers will be cached. The cached headers will be stored in $XDG_CACHE_HOME/aerc, which defaults to ~/.cache/aerc. Default: false cache-max-age = <duration> Defines the maximum age of cached files. Note: the longest unit of time cache-max-age can be specified in is hours. Set to 0 to dis- able cleaning the cache Default: 720h (30 days) idle-timeout = <duration> The length of time the client will wait for the server to send any final update before the IDLE is closed. Default: 10s idle-debounce = <duration> Specifies the length of time from the last client command until the idler starts. Default: 10ms expunge-policy = auto|low-to-high|stable Specifies the deletion policy used when deleting multiple messages in one shot. auto attempts to automatically detect it, and will be correct most of the times. low-to-high specifies that the server deletes messages in increasing sequence number order (this is what GMail or FastMail do, and will correctly handled by the automatic detection). stable specifies that the server does not mutate the sequence numbers it received (this is what Dovecot or WorkMail do, and is not reliably automatically detected). Default: auto SEE ALSO aerc(1) aerc-accounts(5) AUTHORS Originally created by Drew DeVault and maintained by Robin Jarry who is assisted by other open source contributors. For more information about aerc development, see https://sr.ht/~rjarry/aerc/. 2025-11-07 AERC-IMAP(5)
NAME | SYNOPSIS | CONFIGURATION | SEE ALSO | AUTHORS
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