For middlewares to be able to access the fully written mail message, we need a way to execute WriteTo without the calling middleware to be handled, otherwise we end up in an infinite loop
Therefore, this PR introduces the MiddlewareType and the corresponding change of the Middleware interface. We now require to return the MiddlewareType when the Type() method on the interface is called
This way we can also introduce the WriteToSkipMiddleware method which takes a MiddlewareType as argument. This will allow us to use a WriteTo call with the initiating Middleware to be skipped
- Added `EmbedFromEmbedFS()` to allow embedding from embed.FS
- Added `AttachFromEmbedFS()` to allow attaching from embed.FS
- Added `fileFromEmbedFS()` as internal method for both other m
methods to attach/embed the embed.FS file
# SUMMARY
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* Used licenses: CC0-1.0, MIT
* Read errors: 0
* Files with copyright information: 45 / 45
* Files with license information: 45 / 45
Congratulations! Your project is compliant with version 3.0 of the REUSE Specification :-)
- Added `EnvelopeFrom()` and `EnvelopeFromFormat()` methods analogous to the `From()` `FromFormat()` methods
- Changed MsgWriter logic for envelope from addresses
- Adjusted `Msg.GetSender()` to return the envelope from first and only mail body from if the envelope is not set
- Switched the previous implementation to support text/template as well as html/template
- Added SetBody*Template() methods to use a template directly as message body
- Added AddAlternative*Template() methods to use a template directly as alternative message part
We were using `io.Copy` to write to the body string/alternative string to the io.Writer. This placed the byte position of the buffer to be at the EOF after the first `WriteTo()` call leaving the output of a 2nd call to `WriteTo()` empty.
- The writeHeader() method wasn't producing good output for long headers. This has been fixed
- Added a VERSION string to the library
- If both no User-Agent and no X-Mailer header are set, the lib adds a default UA-header