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Don't lookup mail server when using sendmail #22300

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Merged
merged 5 commits into from
Jan 9, 2023
Merged

Don't lookup mail server when using sendmail #22300

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8f3d18f
Don't lookup mail server when using sendmail
lunny Dec 31, 2022
eea0eae
use switch
lunny Jan 9, 2023
64bcbef
Merge branch 'main' into lunny/sendmail_dont_resolve_ip
lunny Jan 9, 2023
217debc
Merge branch 'main' into lunny/sendmail_dont_resolve_ip
lunny Jan 9, 2023
73e9a17
Merge branch 'main' into lunny/sendmail_dont_resolve_ip
lunny Jan 9, 2023
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31 changes: 17 additions & 14 deletions modules/setting/mailer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -178,14 +178,25 @@ func newMailService() {

// we want to warn if users use SMTP on a non-local IP;
// we might as well take the opportunity to check that it has an IP at all
ips := tryResolveAddr(MailService.SMTPAddr)
if MailService.Protocol == "smtp" {
for _, ip := range ips {
if !ip.IsLoopback() {
log.Warn("connecting over insecure SMTP protocol to non-local address is not recommended")
break
// This check is not needed for sendmail
switch MailService.Protocol {
case "sendmail":
var err error
MailService.SendmailArgs, err = shellquote.Split(sec.Key("SENDMAIL_ARGS").String())
if err != nil {
log.Error("Failed to parse Sendmail args: '%s' with error %v", sec.Key("SENDMAIL_ARGS").String(), err)
}
case "smtp", "smtps", "smtp+starttls", "smtp+unix":
ips := tryResolveAddr(MailService.SMTPAddr)
if MailService.Protocol == "smtp" {
for _, ip := range ips {
if !ip.IsLoopback() {
log.Warn("connecting over insecure SMTP protocol to non-local address is not recommended")
break
}
}
}
case "dummy": // just mention and do nothing
}

if MailService.From != "" {
Expand Down Expand Up @@ -214,14 +225,6 @@ func newMailService() {
MailService.EnvelopeFrom = parsed.Address
}

if MailService.Protocol == "sendmail" {
var err error
MailService.SendmailArgs, err = shellquote.Split(sec.Key("SENDMAIL_ARGS").String())
if err != nil {
log.Error("Failed to parse Sendmail args: %s with error %v", CustomConf, err)
}
}

log.Info("Mail Service Enabled")
}

Expand Down