email

type DummyMailer ¶

type DummyMailer struct{}

func (DummyMailer) Send(to string, subject string, body []byte) error

type Emailer ¶

type Emailer interface {
	Send(to string, subject string, body []byte) error
}

type SMTP ¶

type SMTP struct {
	From     string `json:"from"`
	Username string `json:"username"`
	Password string `json:"password"`
	Host     string `json:"host"`
}

SMTP connects to a SMTP server. If the server is not reachable, Send fails.

func LoadSMTP(jsonPath string) (*SMTP, error)

{"from":"","username":"","password":"","host":""}

func (mailer SMTP) Send(to string, subject string, body []byte) error

type Sendmail ¶

type Sendmail struct {
	From string
}

Sendmail runs /usr/bin/sendmail to queue an email for sending.

Your sendmail binary probably has the setgid bit set to be able to copy the mail into the queue directory. If your binary runs as a sandboxed systemd service, you might have to disable these options:

LockPersonality
MemoryDenyWriteExecute
PrivateDevices
ProtectClock
ProtectHostname
ProtectKernelLogs
ProtectKernelModules
ProtectKernelTunables
RestrictAddressFamilies
RestrictNamespaces
RestrictRealtime
RestrictSUIDSGID
SystemCallArchitectures
SystemCallFilter
SystemCallLog

Plus you might have to enable writing to the spool directory, for example:

ReadWritePaths=/var/spool/nullmailer

func (mailer Sendmail) Send(to string, subject string, body []byte) error