While most of the Client options stay the same, the whole workaround logic for the SMTP client has been removed and added as part of the SMTP client instead.
This way we got rid of the duplicate/redundant Client mail(), rcpt(), dsnRcpt(), dsnMail() methods as well as the copies of the cmd() and validateLine() methods. The Client is now using the proper Mail() and Rcpt() methods of the SMTP client instead.
This PR refactors the DSN (RFC 1891) SMTP client handling, that was introduced in https://github.com/wneessen/go-mail/commit/f4cdc61dd04afb35e378877f25ec09eff78a18c6.
While most of the Client options stay the same, the whole workaround logic for the SMTP client has been removed and added as part of the SMTP client instead.
This way we got rid of the duplicate/redundant Client
mail(),rcpt(),dsnRcpt(),dsnMail()methods as well as the copies of thecmd()andvalidateLine()methods. The Client is now using the properMail()andRcpt()methods of the SMTP client instead.