enough_mail

• Fix: Ensure compatibility with Flutter 3.16 - thanks to Tzanou123!

• Fix: use refreshed OAUTH tokens when using the high level MailClient API.
• Fix: handle edge cases in IMAP FETCH responses.
• Feat: Add details for low level IMAP errors when using the high level MailCLient API.
• Feat: Refresh OAUTH tokens 15 minutes in advance before they expire to reduce the risk of a token expiring during a long running operation.
• Feat: show error details when SMTP XOAuth2 authentication fails.
• Feat: synchronize access to low level clients when using the high level MailClient API.

• Fix: Apply correct mailbox path separator - thanks nruzzu!
• Feat: add firstWhereOrNull search method for a Tree
• Feat: add identityFlag getter to Mailbox

• Fix: RangeError when a Mailbox name contains a parentheses - thanks nruzzu
• Fix: base64 decoding of headers with a lowercase b
• Feat: support more name variations for ISO codecs
• Feat: update dependencies - thanks hatch01
• Feat: use standard serialization based on json_serializable
• Feat: Improve high level API fetch message support

• Loosened dependency restrictions a bit upon suggestion from hpoul
• Added support for Big5, KOI8-r and KOI8-u character encodings
• Load encodings only when required

• The MailClient.deleteMessages() / undoDeleteMessages() as well as the moveMessages() and undoMoveMessages() calls
  will now update the given messages UIDs automatically, when they have been specified.
• Simplify building a multipart/alternative message or message part by adding the option plainText and htmlText parameters
  in MessageBuilder.prepareMultipartAlternativeMessage() and addMultipartAlternative().
• Fixed documentation for generating a mime message with an attachment (thanks lqmminh!).

• Thanks to yarsort resolved various POP3 bugs.
• Interpret mime messages with an (invalid) 2-digit year as coming from the current millennium.

Improvements and fixes:

• Thanks to matthiasn the date parsing/generation on west of greenwich timezones now works properly.
• Improve automatic re-connecting when using the high-level MailClient API.
• Support timeouts for IMAP, SMTP and POP calls.
• MimeMessage:
  • Get an alternative mime part easier with MimePart? getAlternativePart(MediaSubtype subtype).
  • Retrieve all recipients via the List<MailAddress> get recipients getter.
  • Support decoding binary transfer-encoding for text message parts.
  • Introduce guid / global unique IDs which are set automatically when using the high-level MailClient.
  • Correctly unwrap header values before decoding them.
  • Accept headers that have no space after the colon-separator.
• Improve high level API support for OAUTH:
  • You can now define refresh and onConfigChanged callback methods when connecting to a mail service using MailClient.
• Support expunging messages when deleting them in MailClient with Future<DeleteResult> deleteMessages( MessageSequence sequence, {bool expunge = false}).
  OauthAuthentication now contains a complete OauthToken.
  main
• MessageBuilder: Access also text-attachments in the attachments getter.
• Only use STARTTLS when the IMAP service supports it.
• Simplify search API.

Breaking changes:

• Package structure is simplified, so that imports of specific classes are not possible anymore. Instead either import 'package:enough_mail/enough_mail.dart'; or one of the specializes sub-packages codecs.dart,discover.dart, highlevel.dart, imap.dart, mime.dart, pop.dart or smtp.dart.
• Authentication.passwordCleartext is renamed to Authentication.passwordClearText
• Mailbox API has changed specifically when creating mailboxes yourself.

Other:

• Improved code style, enforcing linting rules.
• Improve API documentation.
• Improve package structure
• Many further small-scale improvements.

• Fix for handling PARTIAL IMAP responses - thanks to A.Zulli
• Fix for handling FETCH IMAP responses that are spread across several response lines for a single message - #131

• KevinBLT contributed the following improvements and features:
  • Check out the experimental DKIM signing of messages.
  • Enjoy the improved the performance of QuotedPrintable encoding.
  • BCC header is now stripped from messages before sending them via SMTP
• A.Zulli contributed major IMAP features in this release:
  • Sort messages with ImapClient.sortMessages(...) SORT - and also use the extended sort mechanism with specifying returnOptions on servers with ESORT.
  • ImapClient.searchMessages(...) now accepts List<ReturnOption> parameter for extending the search according to the ESEARCH standard.
  • Support PARTIAL responses according to the CONTEXT IMAP extension.
  • Use the LIST extensions:
    • rfc5258: LIST command extensions
    • rfc5819: return STATUS in extended lists
    • rfc6154: SPECIAL-USE mailboxes
• Alexander Sotnikov fixed POP3 so that you can now use the PopClient as intended.
• SMTP improvements:
  • You can now send messages via the SMTP BDAT command using SmtpClient.sendChunkedMessage() / sendChunkedMessageData() / sendChunkedMessageText().
  • You don't require a MimeMessage to send any more when you send messages either via SmtpClient.sendMessageData() or SmtpClient.sendMessageText().
• MessageBuilder / MIME generation improvements:
  • Attachments are now also added when forrwarding a message without quoting in MessageBuilder.prepareForwardMessage().
  • You can now also prepend parts by setting insert to true when calling addPart().
• Other improvements and bugfixes:
  • Remove some dependencies and relax constraints on some so that we all get quicker through the null-safety challenge.
  • Fixed decoding of 8bit messages that use a different charset than UTF8
  • Fixed header decoding in some edge cases
  • Some fixes in parsing personal names in email addresses
  • Support Chinese encodings GBK and GB-2312
  • Improve reconnecting when using the high level API
  • Only download the ENVELOPE information when a new mail is detected in high level API
• Breaking changes:
  • MessageBuilder.replyToMessage is renamed to MessageBuilder.originalMessage

• Allow to specify connectionTimeout for all low level clients
• Support non-ASCII IMAP searches when supported by server
• Fix reconnection issue for ImapClient
• Fix decoding of sequentiell encoded words in edge cases
• Do a noop when resuming MailClient when server does not support IDLE

• ImapClient now processes tasks sequentially, removing the dreaded StreamSink is bound to a stream exception when accessing ImapClient from several threads.
• Highlevel API for adding mail messages with MailClient.appendMessage(...) / .appendMessageToFlag(...) and MailClient.saveDraftMessage(...)
• Searching for messages is now easier than ever with MailClient.search(MailSearch) and SearchQueryBuilder- #109
• Sent messages are now appended automatically when using the high level MailClient.sentMessage(...) call unless setting the appendToSent parameter to false.
• Create IMAP search criteria with SearchQueryBuilder and conduct common searches with MailClient.search(MailSearch)
• Fixed detection of audio media types
• Added CRAM-MD5 authentication support for SMTP - #108
• Added XOAUTH2 authentication support for SMTP - #107
• Create MessageSequence from list of mime messages with MessageSequence.fromMessages(List<MimeMessage>)
• You can now check with the highlevel API if you can send 8bit messages with MailClient.supports8BitEncoding() and set the preferred encoding with MailClient.buildMimeMessageWithRecommendedTextEncoding(MessageBuilder).
• MessageBuilder now can recommend text encodings with MessageBuilder.setRecommendedTextEncoding(bool supports8Bit) and sets content types automatically depending on attachments.
• Access attachment information easier using the MessageBuilder.attachments field and the AttachmentInfo class.
• You can send a MessageBuilder instance instead of a MimeMessage with MailClient.sendMessageBuilder(...).
• Breaking API changes:
  • SmtpClient.login() is deprecated, please use the better named SmtpClient.authenticate() instead, e.g.: await smtpClient.authenticate(userName, password, AuthMechanism.login)
  • BodyPart.id is renamed to BodyPart.cid to make the meaning clearer.

• Moving from response based to exceptions, compare the migration guide for details compare the migration guide in Readme.md and #101 for details - specicial thanks to Tienisto
• Improved performance when downloading large data significantly
• High Level API now checks for SMTP START TLS support before switching to a secure connection when connected via plan sockets
• Low level SMTP API now exposes all found server capabilities
• Fix decoding bug for UTF8 8 bit encoded text
• ImapClient.search(...) now returns a MessageSequence instead just a list of integers
• High level API now supports moving messages with MailClient.moveMessages(...) and MailClient.undoMoveMessages() methods
• High level API now supports deleting messages with MailClient.deleteMessages(...) and MailClient.undoDeleteMessages() methods

• Remove spaces between two encoded words in headers
• High level API support for deleting messages and undoing it:
  • Future<MailResponse<DeleteResult>> deleteMessages( MessageSequence sequence, Mailbox trashMailbox)
  • Future<MailResponse<DeleteResult>> deleteAllMessages(Mailbox mailbox, {bool expunge})
• Deleted messages are now preferably moved to \Trash folder, when possible.
• Optionally mark a message as seen by setting markAsSeen parameter to true when fetching messages or message contents using the high level API, e.g. MailClient.fetchMessageContents(message, markAsSeen: true);

• Ignoring malformed UT8 when logging thanks to Tienisto.
• Use enough_convert package for previously missing character encodings.
• Add MimeMessage.parseFromText(String text) helper method.
• Add Open PGP mime types like MediaSubtype.applicationPgpSignature to known media types.

• Fix handling of VANISHED (EARLIER) responses in edge cases thanks to Andrea.
• Find a mime message part by its content-ID with the MimeMessage.getPartWithContentId(String cid) helper method.
• List all parts of a mime message sequentially using the MimeMessage.allPartsFlat getter.
• Fix problems with UTF8 8-bit decoded answers.
• Use the enough_serialization for JSON (de)serialization support.
• Improve discovery of mail settings.
• Allow to limit the download size of messages: MailClient.fetchMessageContents(MimeMessage message, {int maxSize}) fetches all parts apart from attachments when the message size is bigger than the one specified in bytes in maxSize.
• Improve documentation, also thanks to TheOneWithTheBraid.

• Support IMAP QUOTA Extension thanks to azulli.
• Throw exceptions that might occur while sending a message thanks to hpoul.
• Retrieve currently selected mailbox in highlevel API with MailClient.selectedMailbox.
• Specify fetchPreference in highlevel API when fetching messages, for example to only fetch ENVELOPEs first.
• Create a message builder based on a mailto link with MessageBuilder.prepareMailtoBasedMessage().
• Mail events now contain the originating ImapClient, SmtpClient or MailClient instance to match the event when having several active accounts at the same time.
• Support the SMTP AUTH LOGIN authentication by specying the authMechanism parameter in SmtpClient.login().
• Ease flagging of messages with MailClient.flagMessage().
• Highlevel API now udates flags of a message correctly when they have changed remotely.

• easier to retrieve and set common message flags such as \Seen, \Answered and $Forwarded
• use MimeMessage.isSeen, .isAnswered, .isForwarded to query the corresponding flags
• use MimeMessage.hasAttachments() or MimeMessage.hasAttachmentsOrInlineNonTextualParts() to determine if the message contains attachment parts.
• Q-Encoding is used for encoding/decoding corresponding MIME message headers now, compare #77 for details

• Mime: List all message parts with a specfic Content-Disposition with MimeMessage.findContentInfo(ContenDisposition disposition).
• Mime: Retrieve an individual message part with MimeMessage.getPart(String fetchId)
• Bugfix: fetch individual message parts via IMAP with BODY[1.2] now works.
• MailClient: Download individual message parts with MailClient.fetchMessagePart(MimeMessage message, String fetchId).
• MailClient: events now provide reference to used MailClient instance, so that apps can differentiate between accounts.
• MessageBuilder: allow to specify user aliases and to handle + aliases and to differentiate between reply and reply-all in MessageBuilder.prepareReplyToMessage()
• ImapClient: Ensure that every Inbox has a MailboxFlag.inbox.

• Thanks to hpoul the XML library now works with both beta and stable flutter channels.
• Thanks to hydeparkk encoded mailbox paths are now used in copy, move, status and append/
• Fix decoding bug for UTF8 8 bit encoded text
• Fix handling mailboxes with a space in their path
• Allow to easly serialize and deserialize MailAccount to/from JSON.
• Extended high level MailClient API:
  • Allow to select mailbox by path
  • Disconnect to close connections
  • Include fetching message flags when fetching messages
  • Allow to store message flags, e.g. mark as read
  • Provide access to low level API from within the high level API

• Add discconect() method to high level MailClient API
• Encode and decode mailbox names using Modified UTF7 encoding
• Add IMAP support for UTF-8

• High level MailClient API supports IMAP IDLE, POP and SMTP.

• Downgraded crypto dependency to be compatible with flutter_test ons stable flutter channel again

• Added high level MailClient API
• Downgraded XML dependency to be compatible with flutter_test again
• Fixed ImapClient's eventBus registration when this is specified outside of ImapClient.

• Add support to discover email settings using the Discover class.

• Improve parsing of IMAP BODYSTRUCTURE responses to FETCH commands.
• Add message media types.

• Provide POP3 support

• Breaking API change: use FETCH IMAP methods now return FetchImapResult instead of List<MimeMessage>
• Breaking API change: ImapFetchEvent now contains a full MimeMessage instead of just the sequence ID and flags
• Added ImapVanishedEvent that is called instead of ImapExpungeEvent when QRESYNC has been enabled
• Added support for QRESYNC extension
• Added support for ENABLE extension
• Fix handling STATUS responses (issue #56)

• Added support for ISO 8859-15 / latin9 encoding - based on UTF-8

• Breaking change: use MessageSequence for defining message ID or UID ranges instead of integer-based IDs

• Fix for fetching recent messages when the chunksize is larger than the existing messages - thanks to studiozocaro!

• Breaking API changes: MimeMessage.body API, get and set text/plain and text/html parts in MimeMessage
• Support nested BODY and BODYSTRUCTURE responeses when fetching message data
• Support CONDSTORE IMAP extension
• Support MOVE IMAP extension
• Support UIDPLUS IMAP extension

• Supports parsing BODYSTRUCTURE responses when fetching message data
• Also eased API for accessing BODY and BODYSTRUCTURE response data

• Adding 'name' parameter with quotes to 'Content-Type' header when adding a file

• Adding 'name' parameter to 'Content-Type' header when adding a file

• Save messages to the server with ImapClient.appendMessage().
• Store message flags using the ImapClient.store() method or use one of the mark-methods like markFlagged() or markSeen().
• Copy message(s) using ImapClient.copy().
• Copy, fetch, store or search message with UIDs using ImapClient.uidCopy(), uidStore(), etc.
• Remove messages marked with the \Deleted flag using ImapClient.expunge()
• Authenticate via OAUTH 2.0 using ImapClient.authenticateWithOAuth2() (AUTH=XOAUTH2) or authenticateWithOAuthBearer() (AUTH=OAUTHBEARER).
• You can now switch to TLS using ImapClient.startTls().
• Query the capabilities using the ImapClient.capability() call.
• Let the server do some housekeeping using the ImapClient.check() method.

• Forward complex messages with MessageBuilder.prepareForwardMessage(), too (issue #24)

• Forward messages with MessageBuilder.prepareForwardMessage()

• Adding simple reply generation with MessageBuilder.prepareReplyToMessage() (issue #25)
• Improvement for adding larger files (issue #28)

• Fix for message sending via SMTP (issue #27)

• Introducing MessageBuilder for easy mime message creation
• Adapted example

• Ease access to text contents of a mime message
• Adapted example

• Parse MIME messages using MimeMessage.parse()
• Handle content encodings more reliably

• Supporting ASCII character character encodings and padding BASE64 headers if required

• Addressed health and syntax recommendations

• Support IMAP METADATA Extension