logging to database

cmd is a convenience function that sends a command and returns the response textproto.Error returned by c.Text.ReadResponse is converted into SMTPErro

hello runs a hello exchange if needed.

TLSConnectionState returns the connection's TLS connection state. Zero values are returned if the connection doesn't use TLS.

validateLine checks to see if a line has CR or LF as per RFC 5321

Set currently processed message contents and send it.

toSMTPErr converts textproto.Error into SMTPError, parsing enhanced status code if it is present.

Close closes the connection.

ListenAndServe listens on the network address s.Addr and then calls Serve to handle requests on incoming connections. If s.Addr is blank and LMTP is

fillRemaining sets status for all recipients SetStatus was not called for before.

NewClient returns a new Client using an existing connection and host as a server name to be used when authenticating.

Setting the user resets any message being generated

LMTPData is the LMTP-specific version of Data method. It can be optionally implemented by the backend to provide per-recipient status information when

Free all resources associated with session.

Set return path for currently processed message.

Add recipient for currently processed message.

Reads a line of input

Serve accepts incoming connections on the Listener l.

StartTLS sends the STARTTLS command and encrypts all further communication. Only servers that advertise the STARTTLS extension support this function.

ehlo sends the EHLO (extended hello) greeting to the server. It should be the preferred greeting for servers that support it.

Called if the client attempts to send mail without logging in first. Return smtp.ErrAuthRequired if you don't want to support this.

Auth authenticates a client using the provided authentication mechanism. Only servers that advertise the AUTH extension support this function. If ser

Close immediately closes all active listeners and connections. Close returns any error returned from closing the server's underlying listener(s).

Dial returns a new Client connected to an SMTP server at addr. The addr must include a port, as in "mail.example.com:smtp".

Extension reports whether an extension is support by the server. The extension name is case-insensitive. If the extension is supported, Extension also

Authenticate a user. Return smtp.ErrAuthUnsupported if you don't want to support this.

Quit sends the QUIT command and closes the connection to the server. If Quit fails the connection is not closed, Close should be used in this case.

Discard currently processed message.

Retrieve a token, saves the token, then returns the generated client.

Request a token from the web, then returns the retrieved token. Rewrite for the frontend /////////

Commands are dispatched to the appropriate handler functions.

DATA

main request handler if input differs from USER we just drop the connection and don't log it

GREET state -> waiting for HELO

READY state -> waiting for MAIL

MAIL state -> waiting for RCPTs followed by DATA

helo sends the HELO greeting to the server. It should be used only when the server does not support ehlo.

logging to database

return new connection with parameters

return new connection with parameters

Takes the arguments proceeding a command and files them into a map[string]string after uppercasing each key. Sample arg string: " BODY=8BITMIME SIZ