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in DSN, don't add a comment with a nil IP address if we don't have an IP

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Mechiel Lukkien 2023-06-16 09:55:45 +02:00
parent b190a2cda8
commit e81ed7af26
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1 changed files with 5 additions and 1 deletions
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6
dsn/dsn.go
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@ -262,7 +262,11 @@ func (m *Message) Compose(log *mlog.Log, smtputf8 bool) ([]byte, error) {
status("Status", statusLine) // ../rfc/3464:975
if !r.RemoteMTA.IsZero() {
// ../rfc/3464:1015
status("Remote-MTA", fmt.Sprintf("dns;%s (%s)", r.RemoteMTA.Name, smtp.AddressLiteral(r.RemoteMTA.IP)))
s := "dns;" + r.RemoteMTA.Name
if len(r.RemoteMTA.IP) > 0 {
s += " (" + smtp.AddressLiteral(r.RemoteMTA.IP) + ")"
}
status("Remote-MTA", s)
}
// Presence of Diagnostic-Code indicates the code is from Remote-MTA. ../rfc/3464:1053
if r.DiagnosticCode != "" {