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improve dsn handling

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have the full smtp reply in the Diagnostic-Code field, not something that
resembles it but isn't quite the same.

include any additional error message in the Status field as comment.

before, we ended up having an Diagnostic-Code that didn't include the original
smtp code. it only had the enhanced error code.
This commit is contained in:
Mechiel Lukkien
2024-02-20 16:31:15 +01:00
parent dc83ad1df5
commit 1c934f0103
8 changed files with 69 additions and 116 deletions
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10
queue/submit.go
View File

@ -78,7 +78,7 @@ func deliverSubmit(qlog mlog.Log, resolver dns.Resolver, dialer smtpclient.Diale
requireTLS := m.RequireTLS != nil && *m.RequireTLS
if requireTLS && (tlsMode != smtpclient.TLSRequiredStartTLS && tlsMode != smtpclient.TLSImmediate || !tlsPKIX) {
errmsg = fmt.Sprintf("transport %s: message requires verified tls but transport does not verify tls", transportName)
fail(ctx, qlog, m, backoff, true, dsn.NameIP{}, smtp.SePol7MissingReqTLS, errmsg, nil)
fail(ctx, qlog, m, backoff, true, dsn.NameIP{}, smtp.SePol7MissingReqTLS, errmsg, "", nil)
return
}
@ -115,7 +115,7 @@ func deliverSubmit(qlog mlog.Log, resolver dns.Resolver, dialer smtpclient.Diale
}
qlog.Errorx("dialing for submission", err, slog.String("remote", addr))
errmsg = fmt.Sprintf("transport %s: dialing %s for submission: %v", transportName, addr, err)
fail(ctx, qlog, m, backoff, false, dsn.NameIP{}, "", errmsg, nil)
fail(ctx, qlog, m, backoff, false, dsn.NameIP{}, "", errmsg, "", nil)
return
}
dialcancel()
@ -171,7 +171,7 @@ func deliverSubmit(qlog mlog.Log, resolver dns.Resolver, dialer smtpclient.Diale
qlog.Errorx("establishing smtp session for submission", err, slog.String("remote", addr))
errmsg = fmt.Sprintf("transport %s: establishing smtp session with %s for submission: %v", transportName, addr, err)
secodeOpt = smtperr.Secode
fail(ctx, qlog, m, backoff, false, remoteMTA, secodeOpt, errmsg, smtperr.MoreLines)
fail(ctx, qlog, m, backoff, false, remoteMTA, secodeOpt, errmsg, smtperr.Line, smtperr.MoreLines)
return
}
defer func() {
@ -196,7 +196,7 @@ func deliverSubmit(qlog mlog.Log, resolver dns.Resolver, dialer smtpclient.Diale
if err != nil {
qlog.Errorx("opening message for delivery", err, slog.String("remote", addr), slog.String("path", p))
errmsg = fmt.Sprintf("transport %s: opening message file for submission: %v", transportName, err)
fail(ctx, qlog, m, backoff, false, dsn.NameIP{}, "", errmsg, nil)
fail(ctx, qlog, m, backoff, false, dsn.NameIP{}, "", errmsg, "", nil)
return
}
msgr = store.FileMsgReader(m.MsgPrefix, f)
@ -239,7 +239,7 @@ func deliverSubmit(qlog mlog.Log, resolver dns.Resolver, dialer smtpclient.Diale
permanent = smtperr.Permanent
secodeOpt = smtperr.Secode
errmsg = fmt.Sprintf("transport %s: submitting email to %s: %v", transportName, addr, err)
fail(ctx, qlog, m, backoff, permanent, remoteMTA, secodeOpt, errmsg, smtperr.MoreLines)
fail(ctx, qlog, m, backoff, permanent, remoteMTA, secodeOpt, errmsg, smtperr.Line, smtperr.MoreLines)
return
}
qlog.Info("delivered from queue with transport")