* added support for REQUIRETLS ([#1793](https://github.com/nodemailer/nodemailer/issues/1793)) ([053ce6a](https://github.com/nodemailer/nodemailer/commit/053ce6a772a7c608e6bee7f58ebe9900afbd9b84))
* use 8bit encoding for message/rfc822 attachments ([adf8611](https://github.com/nodemailer/nodemailer/commit/adf86113217b23ff3cd1191af5cd1d360fcc313b))
* prevent stack overflow DoS in addressparser with deeply nested groups ([b61b9c0](https://github.com/nodemailer/nodemailer/commit/b61b9c0cfd682b6f647754ca338373b68336a150))
* Increase data URI size limit from 100KB to 50MB and preserve content type ([28dbf3f](https://github.com/nodemailer/nodemailer/commit/28dbf3fe129653f5756c150a98dc40593bfb2cfe))
* **release:** Trying to fix release proecess by upgrading Node version in runner ([579fce4](https://github.com/nodemailer/nodemailer/commit/579fce4683eb588891613a6c9a00d8092e8c62d1))
* **addressparser:** flatten nested groups per RFC 5322 ([8f8a77c](https://github.com/nodemailer/nodemailer/commit/8f8a77c67f0ba94ddf4e16c68f604a5920fb5d26))
- **dns:** add memory leak prevention for DNS cache ([0240d67](https://github.com/nodemailer/nodemailer/commit/0240d6795ded6d8008d102161a729f120b6d786a))
- **linter:** Updated eslint and created prettier formatting task ([df13b74](https://github.com/nodemailer/nodemailer/commit/df13b7487e368acded35e45d0887d23c89c9177a))
- refresh expired DNS cache on error ([#1759](https://github.com/nodemailer/nodemailer/issues/1759)) ([ea0fc5a](https://github.com/nodemailer/nodemailer/commit/ea0fc5a6633a3546f4b00fcf2f428e9ca732cdb6))
- resolve linter errors in DNS cache tests ([3b8982c](https://github.com/nodemailer/nodemailer/commit/3b8982c1f24508089a8757b74039000a4498b158))
- **encoder:** avoid silent data loss by properly flushing trailing base64 ([#1747](https://github.com/nodemailer/nodemailer/issues/1747)) ([01ae76f](https://github.com/nodemailer/nodemailer/commit/01ae76f2cfe991c0c3fe80170f236da60531496b))
- ReDoS vulnerability in parseDataURI and \_processDataUrl ([#1755](https://github.com/nodemailer/nodemailer/issues/1755)) ([90b3e24](https://github.com/nodemailer/nodemailer/commit/90b3e24d23929ebf9f4e16261049b40ee4055a39))
- **pools:** Emit 'clear' once transporter is idle and all connections are closed ([839e286](https://github.com/nodemailer/nodemailer/commit/839e28634c9a93ae4321f399a8c893bf487a09fa))
- **smtp-connection:** jsdoc public annotation for socket ([#1741](https://github.com/nodemailer/nodemailer/issues/1741)) ([c45c84f](https://github.com/nodemailer/nodemailer/commit/c45c84fe9b8e2ec5e0615ab02d4197473911ab3e))
- **attachments:** Set the default transfer encoding for message/rfc822 attachments as '7bit' ([007d5f3](https://github.com/nodemailer/nodemailer/commit/007d5f3f40908c588f1db46c76de8b64ff429327))
- **ses:** Use formatted FromEmailAddress for SES emails ([821cd09](https://github.com/nodemailer/nodemailer/commit/821cd09002f16c20369cc728b9414c7eb99e4113))
- SESv2 SDK support, removed older SES SDK v2 and v3 , removed SES rate limiting and idling features ([15db667](https://github.com/nodemailer/nodemailer/commit/15db667af2d0a5ed835281cfdbab16ee73b5edce))
- **services:** add Seznam email service configuration ([#1695](https://github.com/nodemailer/nodemailer/issues/1695)) ([d1ae0a8](https://github.com/nodemailer/nodemailer/commit/d1ae0a86883ba6011a49a5bbdf076098e2e3637a))
- **proxy:** Set error and timeout errors for proxied sockets ([aa0c99c](https://github.com/nodemailer/nodemailer/commit/aa0c99c8f25440bb3dc91f4f3448777c800604d7))
- **addressparser:** Correctly detect if user local part is attached to domain part ([f2096c5](https://github.com/nodemailer/nodemailer/commit/f2096c51b92a69ecfbcc15884c28cb2c2f00b826))
- **api:** Added support for Ethereal authentication ([56b2205](https://github.com/nodemailer/nodemailer/commit/56b22052a98de9e363f6c4d26d1512925349c3f3))
- **services.json:** update Mailtrap host and port in well known ([#1652](https://github.com/nodemailer/nodemailer/issues/1652)) ([fc2c9ea](https://github.com/nodemailer/nodemailer/commit/fc2c9ea0b4c4f4e514143d2a138c9a23095fc827))
- **well-known-services:** Add Loopia in well known services ([#1655](https://github.com/nodemailer/nodemailer/issues/1655)) ([21a28a1](https://github.com/nodemailer/nodemailer/commit/21a28a18fc9fdf8e0e86ddd846e54641395b2cb6))
- **message-generation:** Escape single quote in address names ([4ae5fad](https://github.com/nodemailer/nodemailer/commit/4ae5fadeaac70ba91abf529fcaae65f829a39101))
- **headers:** Ensure that Content-type is the bottom header ([c7cf97e](https://github.com/nodemailer/nodemailer/commit/c7cf97e5ecc83f8eee773359951df995c9945446))
- **data-uri:** Do not use regular expressions for parsing data URI schemes ([12e65e9](https://github.com/nodemailer/nodemailer/commit/12e65e975d80efe6bafe6de4590829b3b5ebb492))
- **data-uri:** Moved all data-uri regexes to use the non-regex parseDataUri method ([edd5dfe](https://github.com/nodemailer/nodemailer/commit/edd5dfe5ce9b725f8b8ae2830797f65b2a2b0a33))
- **security:** Fix issues described in GHSA-9h6g-pr28-7cqp. Do not use eternal matching pattern if only a few occurences are expected ([dd8f5e8](https://github.com/nodemailer/nodemailer/commit/dd8f5e8a4ddc99992e31df76bcff9c590035cd4a))
- **tests:** Use native node test runner, added code coverage support, removed grunt ([#1604](https://github.com/nodemailer/nodemailer/issues/1604)) ([be45c1b](https://github.com/nodemailer/nodemailer/commit/be45c1b299d012358d69247019391a02734d70af))
- **punycode:** do not use native punycode module ([b4d0e0c](https://github.com/nodemailer/nodemailer/commit/b4d0e0c7cc4b15bc4d9e287f91d1bcaca87508b0))
- **customAuth:** Do not require user and pass to be set for custom authentication schemes (fixes [#1584](https://github.com/nodemailer/nodemailer/issues/1584)) ([41d482c](https://github.com/nodemailer/nodemailer/commit/41d482c3f01e26111b06f3e46351b193db3fb5cb))
- **inline:** Use 'inline' as the default Content Dispostion value for embedded images ([db32c93](https://github.com/nodemailer/nodemailer/commit/db32c93fefee527bcc239f13056e5d9181a4d8af))
- **tests:** Removed Node v12 from test matrix as it is not compatible with the test framework anymore ([7fe0a60](https://github.com/nodemailer/nodemailer/commit/7fe0a608ed6bcb70dc6b2de543ebfc3a30abf984))
- Fixed address formatting issue where newlines in an email address, if provided via address object, were not properly removed. Reported by tmazeika (#1289)
- Fixed RFC822 output for MailComposer when using invalid content-type value. Mostly relevant if message attachments have stragne content-type values set.
- Added new option to pass a set of httpHeaders to be sent when fetching attachments. See [PR #1034](https://github.com/nodemailer/nodemailer/pull/1034)
- Changed default behavior for attachment option contentTransferEncoding. If it is unset then base64 encoding is used for the attachment. If it is set to false then previous default applies (base64 for most, 7bit for text)
- Added missing error handlers for Sendmail, SES and Stream transports. If a messages contained an invalid URL as attachment then these transports threw an uncatched error
- License changed from MIT to **EUPL-1.1**. This was possible as the new version of Nodemailer is a major rewrite. The features I don't have ownership for, were removed or reimplemented. If there's still some snippets in the code that have vague ownership then notify <mailto:andris@kreata.ee> about the conflicting code and I'll fix it.
- Requires **Node.js v6+**
- All **templating is gone**. It was too confusing to use and to be really universal a huge list of different renderers would be required. Nodemailer is about email, not about parsing different template syntaxes
- **No NTLM authentication**. It was too difficult to re-implement. If you still need it then it would be possible to introduce a pluggable SASL interface where you could load the NTLM module in your own code and pass it to Nodemailer. Currently this is not possible.
- **OAuth2 authentication** is built in and has a different [configuration](https://nodemailer.com/smtp/oauth2/). You can use both user (3LO) and service (2LO) accounts to generate access tokens from Nodemailer. Additionally there's a new feature to authenticate differently for every message – useful if your application sends on behalf of different users instead of a single sender.
- **Improved Calendaring**. Provide an ical file to Nodemailer to send out [calendar events](https://nodemailer.com/message/calendar-events/).
- All **dependencies were dropped**. There is exactly 0 dependencies needed to use Nodemailer. This brings the installation time of Nodemailer from NPM down to less than 2 seconds
- **Delivery status notifications** added to Nodemailer
- Improved and built-in **DKIM** signing of messages. Previously you needed an external module for this and it did quite a lousy job with larger messages
- **Stream transport** to return a RFC822 formatted message as a stream. Useful if you want to use Nodemailer as a preprocessor and not for actual delivery.
- **Sendmail** transport built-in, no need for external transport plugin
- Added new method `verify` to check SMTP configuration
- Direct transport uses STARTTLS by default, fallbacks to plaintext if STARTTLS fails
- Added new message option `list` for setting List-\* headers
- Add simple proxy support with `getSocket` method
- Added new message option `textEncoding`. If `textEncoding` is not set then detect best encoding automatically
- Added new message option `icalEvent` to embed iCalendar events. Example [here](examples/ical-event.js)
- Added new attachment option `raw` to use prepared MIME contents instead of generating a new one. This might be useful when you want to handcraft some parts of the message yourself, for example if you want to inject a PGP encrypted message as the contents of a MIME node
- Added new message option `raw` to use an existing MIME message instead of generating a new one
- Implemented templating support. You can either use a simple built-in renderer or some external advanced renderer, eg. [node-email-templates](https://github.com/niftylettuce/node-email-templates). Templating [docs](http://nodemailer.com/2-0-0-beta/templating/).
- Updated smtp-pool to emit 'idle' events in order to handle message queue more effectively
- Updated custom header handling, works everywhere the same now, no differences between adding custom headers to the message or to an attachment
Added `defaults` argument for `createTransport` to predefine commonn values (eg. `from` address)
## v1.9.0 2015-11-09
Returns a Promise for `sendMail` if callback is not defined
## v1.8.0 2015-10-08
Added priority option (high, normal, low) for setting Importance header
## v1.7.0 2015-10-06
Replaced hyperquest with needle. Fixes issues with compressed data and redirects
## v1.6.0 2015-10-05
Maintenance release. Bumped dependencies to get support for unicode filenames for QQ webmail and to support emoji in filenames
## v1.5.0 2015-09-24
Use mailcomposer instead of built in solution to generate message sources. Bumped libmime gives better quoted-printable handling.
## v1.4.0 2015-06-27
Added new message option `watchHtml` to specify Apple Watch specific HTML part of the message. See [this post](https://litmus.com/blog/how-to-send-hidden-version-email-apple-watch) for details
## v1.3.4 2015-04-25
Maintenance release, bumped buildmail version to get fixed format=flowed handling
## v1.3.3 2015-04-25
Maintenance release, bumped dependencies
## v1.3.2 2015-03-09
Maintenance release, upgraded dependencies. Replaced simplesmtp based tests with smtp-server based ones.
## v1.3.0 2014-09-12
Maintenance release, upgrades buildmail and libmime. Allows using functions as transform plugins and fixes issue with unicode filenames in Gmail.
## v1.2.2 2014-09-05
Proper handling of data uris as attachments. Attachment `path` property can also be defined as a data uri, not just regular url or file path.
## v1.2.1 2014-08-21
Bumped libmime and mailbuild versions to properly handle filenames with spaces (short ascii only filenames with spaces were left unquoted).
## v1.2.0 2014-08-18
Allow using encoded strings as attachments. Added new property `encoding` which defines the encoding used for a `content` string. If encoding is set, the content value is converted to a Buffer value using the defined encoding before usage. Useful for including binary attachemnts in JSON formatted email objects.
## v1.1.2 2014-08-18
Return deprecatin error for v0.x style configuration
## v1.1.1 2014-07-30
Bumped nodemailer-direct-transport dependency. Updated version includes a bugfix for Stream nodes handling. Important only if use direct-transport with Streams (not file paths or urls) as attachment content.
## v1.1.0 2014-07-29
Added new method `resolveContent()` to get the html/text/attachment content as a String or Buffer.
## v1.0.4 2014-07-23
Bugfix release. HTML node was instered twice if the message consisted of a HTML content (but no text content) + at least one attachment with CID + at least one attachment without CID. In this case the HTML node was inserted both to the root level multipart/mixed section and to the multipart/related sub section
## v1.0.3 2014-07-16
Fixed a bug where Nodemailer crashed if the message content type was multipart/related
## v1.0.2 2014-07-16
Upgraded nodemailer-smtp-transport to 0.1.11\. The docs state that for SSL you should use 'secure' option but the underlying smtp-connection module used 'secureConnection' for this purpose. Fixed smpt-connection to match the docs.
## v1.0.1 2014-07-15
Implemented missing #close method that is passed to the underlying transport object. Required by the smtp pool.
## v1.0.0 2014-07-15
Total rewrite. See migration guide here: <http://www.andrisreinman.com/nodemailer-v1-0/#migrationguide>
- Replace \r\n by \n in Sendmail transport (rolftimmermans) [fed2089e..616ec90c] A lot of sendmail implementations choke on \r\n newlines and require \n This commit addresses this by transforming all \r\n sequences passed to the sendmail command with \n
- Updated mailcomposer dependnecy version to 0.2.3
- Remove legacy code - node v0.4 is not supported anymore anyway
- Use hostname (autodetected or from the options.name property) for Message-Id instead of "Nodemailer" (helps a bit when messages are identified as spam)
