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Code Issues Releases Activity

Feature: Add option to only allow SMTP recipients matching a regular expression (disable open-relay behaviour #219)

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Ralph Slooten
2024-01-03 12:06:36 +13:00
parent aad15945b3
commit cdab59b295
6 changed files with 80 additions and 40 deletions
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4
cmd/root.go
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@@ -103,6 +103,7 @@ func init() {
rootCmd.Flags().BoolVar(&config.SMTPAuthAllowInsecure, "smtp-auth-allow-insecure", config.SMTPAuthAllowInsecure, "Enable insecure PLAIN & LOGIN authentication")
rootCmd.Flags().BoolVar(&config.SMTPStrictRFCHeaders, "smtp-strict-rfc-headers", config.SMTPStrictRFCHeaders, "Return SMTP error if message headers contain <CR><CR><LF>")
rootCmd.Flags().IntVar(&config.SMTPMaxRecipients, "smtp-max-recipients", config.SMTPMaxRecipients, "Maximum SMTP recipients allowed")
rootCmd.Flags().StringVar(&config.SMTPAllowedRecipients, "smtp-allowed-recipients", config.SMTPAllowedRecipients, "Only allow SMTP recipients matching a regular expression (default allow all)")
rootCmd.Flags().StringVar(&config.SMTPRelayConfigFile, "smtp-relay-config", config.SMTPRelayConfigFile, "SMTP configuration file to allow releasing messages")
rootCmd.Flags().BoolVar(&config.SMTPRelayAllIncoming, "smtp-relay-all", config.SMTPRelayAllIncoming, "Relay all incoming messages via external SMTP server (caution!)")
@@ -170,6 +171,9 @@ func initConfigFromEnv() {
if len(os.Getenv("MP_SMTP_MAX_RECIPIENTS")) > 0 {
config.SMTPMaxRecipients, _ = strconv.Atoi(os.Getenv("MP_SMTP_MAX_RECIPIENTS"))
}
if len(os.Getenv("MP_SMTP_ALLOWED_RECIPIENTS")) > 0 {
config.SMTPAllowedRecipients = os.Getenv("MP_SMTP_ALLOWED_RECIPIENTS")
}
// Relay server config
config.SMTPRelayConfigFile = os.Getenv("MP_SMTP_RELAY_CONFIG")