email

Documentation

Overview

Package email is designed to provide an "email interface for humans." Designed to be robust and flexible, the email package aims to make sending email easy without getting in the way.

Index

• Constants
• Variables
• type Attachment
• type Email
  • func NewEmail() *Email
  • func NewEmailFromReader(r io.Reader) (*Email, error)
  • func (e *Email) Attach(r io.Reader, filename string, c string) (a *Attachment, err error)
  • func (e *Email) AttachFile(filename string) (a *Attachment, err error)
  • func (e *Email) Bytes() ([]byte, error)
  • func (e *Email) Send(addr string, a smtp.Auth) error
  • func (e *Email) SendWithStartTLS(addr string, a smtp.Auth, t *tls.Config) error
  • func (e *Email) SendWithTLS(addr string, a smtp.Auth, t *tls.Config) error

Constants

const (
	MaxLineLength = 76 // MaxLineLength is the maximum line length per RFC 2045

)

Variables

var ErrMissingBoundary = errors.New("No boundary found for multipart entity")

ErrMissingBoundary is returned when there is no boundary given for a multipart entity

var ErrMissingContentType = errors.New("No Content-Type found for MIME entity")

ErrMissingContentType is returned when there is no "Content-Type" header for a MIME entity

Types

type Attachment

type Attachment struct {
	Filename    string
	ContentType string
	Header      textproto.MIMEHeader
	Content     []byte
	HTMLRelated bool
}

Attachment is a struct representing an email attachment. Based on the mime/multipart.FileHeader struct, Attachment contains the name, MIMEHeader, and content of the attachment in question

type Email

type Email struct {
	ReplyTo     []string
	From        string
	To          []string
	Bcc         []string
	Cc          []string
	Subject     string
	Text        []byte // Plaintext message (optional)
	HTML        []byte // Html message (optional)
	Sender      string // override From as SMTP envelope sender (optional)
	Headers     textproto.MIMEHeader
	Attachments []*Attachment
	ReadReceipt []string
}

Email is the type used for email messages

func NewEmail

func NewEmail() *Email

NewEmail creates an Email, and returns the pointer to it.

func NewEmailFromReader

func NewEmailFromReader(r io.Reader) (*Email, error)

NewEmailFromReader reads a stream of bytes from an io.Reader, r, and returns an email struct containing the parsed data. This function expects the data in RFC 5322 format.

func (*Email) Attach

func (e *Email) Attach(r io.Reader, filename string, c string) (a *Attachment, err error)

Attach is used to attach content from an io.Reader to the email. Required parameters include an io.Reader, the desired filename for the attachment, and the Content-Type The function will return the created Attachment for reference, as well as nil for the error, if successful.

func (*Email) AttachFile

func (e *Email) AttachFile(filename string) (a *Attachment, err error)

AttachFile is used to attach content to the email. It attempts to open the file referenced by filename and, if successful, creates an Attachment. This Attachment is then appended to the slice of Email.Attachments. The function will then return the Attachment for reference, as well as nil for the error, if successful.

func (*Email) Bytes

func (e *Email) Bytes() ([]byte, error)

Bytes converts the Email object to a []byte representation, including all needed MIMEHeaders, boundaries, etc.

func (*Email) Send

func (e *Email) Send(addr string, a smtp.Auth) error

Send an email using the given host and SMTP auth (optional), returns any error thrown by smtp.SendMail This function merges the To, Cc, and Bcc fields and calls the smtp.SendMail function using the Email.Bytes() output as the message

func (*Email) SendWithStartTLS

func (e *Email) SendWithStartTLS(addr string, a smtp.Auth, t *tls.Config) error

SendWithStartTLS sends an email over TLS using STARTTLS with an optional TLS config.

The TLS Config is helpful if you need to connect to a host that is used an untrusted certificate.

func (*Email) SendWithTLS

func (e *Email) SendWithTLS(addr string, a smtp.Auth, t *tls.Config) error

SendWithTLS sends an email over tls with an optional TLS config.

The TLS Config is helpful if you need to connect to a host that is used an untrusted certificate.