mtasts

package

v0.53.0 Latest Latest Go to latest Published: Jan 19, 2026 License: Apache-2.0 Imports: 3 Imported by: 0

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func FormatPolicy(p *Policy) (string, error)

FormatPolicy https://www.mailhardener.com/kb/mta-sts TODO: use text/template for this stuff?

func HTTPHandler(p *Policy) (http.HandlerFunc, error)

type Config struct {
	Mode   Mode     `mapstructure:"mode"`
	MX     []string `mapstructure:"mx"`
	MaxAge uint32   `mapstructure:"max-age"`
}

Config represents MTA-STS configuration used to create a policy.

type Mode string

Mode represents an MTA-STS mode (none, testing, enforce).

const (
	ModeNone    Mode = "none"
	ModeTesting Mode = "testing"
	ModeEnforce Mode = "enforce"
)

type Policy struct {
	Version string
	Mode    Mode
	MX      []string
	MaxAge  uint32
}

Policy represents an MTA-STS policy.

func PolicyFromConfig(cfg Config) *Policy

type Record struct {
	Version string `mapstructure:"version"`
	ID      string `mapstructure:"id"`
}

Record represents an MTA-STS DNS TXT record.

func (r *Record) RecordPrefix() string

func (r *Record) RecordType() string

func (r *Record) RecordValue() string

func (r *Record) String() string