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implement outgoing dmarc aggregate reporting

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in smtpserver, we store dmarc evaluations (under the right conditions).
in dmarcdb, we periodically (hourly) send dmarc reports if there are
evaluations. for failed deliveries, we deliver the dsn quietly to a submailbox
of the postmaster mailbox.

this is on by default, but can be disabled in mox.conf.
This commit is contained in:
Mechiel Lukkien
2023-11-01 17:55:40 +01:00
parent d1e93020d8
commit e7699708ef
40 changed files with 2689 additions and 245 deletions
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32
dmarc/dmarc_test.go
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@ -84,7 +84,7 @@ func TestLookupExternalReportsAccepted(t *testing.T) {
test("example.com", "simple2.example", StatusNone, true, nil)
test("example.com", "one.example", StatusNone, true, nil)
test("example.com", "absent.example", StatusNone, false, ErrNoRecord)
test("example.com", "multiple.example", StatusNone, false, ErrMultipleRecords)
test("example.com", "multiple.example", StatusNone, true, nil)
test("example.com", "malformed.example", StatusPermerror, false, ErrSyntax)
test("example.com", "temperror.example", StatusTemperror, false, ErrDNS)
}
@ -137,7 +137,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusNone,
nil,
true, Result{true, StatusFail, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
true, Result{true, StatusFail, false, false, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
)
// Accept with spf pass.
@ -145,7 +145,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusPass,
&dns.Domain{ASCII: "sub.reject.example"},
true, Result{false, StatusPass, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
true, Result{false, StatusPass, true, false, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
)
// Accept with dkim pass.
@ -161,7 +161,7 @@ func TestVerify(t *testing.T) {
},
spf.StatusFail,
&dns.Domain{ASCII: "reject.example"},
true, Result{false, StatusPass, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
true, Result{false, StatusPass, false, true, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
)
// Reject due to spf and dkim "strict".
@ -181,7 +181,7 @@ func TestVerify(t *testing.T) {
},
spf.StatusPass,
&dns.Domain{ASCII: "sub.strict.example"},
true, Result{true, StatusFail, dns.Domain{ASCII: "strict.example"}, &strict, false, nil},
true, Result{true, StatusFail, false, false, dns.Domain{ASCII: "strict.example"}, &strict, false, nil},
)
// No dmarc policy, nothing to say.
@ -189,7 +189,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusNone,
nil,
false, Result{false, StatusNone, dns.Domain{ASCII: "absent.example"}, nil, false, ErrNoRecord},
false, Result{false, StatusNone, false, false, dns.Domain{ASCII: "absent.example"}, nil, false, ErrNoRecord},
)
// No dmarc policy, spf pass does nothing.
@ -197,7 +197,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusPass,
&dns.Domain{ASCII: "absent.example"},
false, Result{false, StatusNone, dns.Domain{ASCII: "absent.example"}, nil, false, ErrNoRecord},
false, Result{false, StatusNone, false, false, dns.Domain{ASCII: "absent.example"}, nil, false, ErrNoRecord},
)
none := DefaultRecord
@ -207,7 +207,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusPass,
&dns.Domain{ASCII: "none.example"},
true, Result{false, StatusPass, dns.Domain{ASCII: "none.example"}, &none, false, nil},
true, Result{false, StatusPass, true, false, dns.Domain{ASCII: "none.example"}, &none, false, nil},
)
// No actual reject due to pct=0.
@ -218,7 +218,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusNone,
nil,
false, Result{true, StatusFail, dns.Domain{ASCII: "test.example"}, &testr, false, nil},
false, Result{true, StatusFail, false, false, dns.Domain{ASCII: "test.example"}, &testr, false, nil},
)
// No reject if subdomain has "none" policy.
@ -229,7 +229,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusFail,
&dns.Domain{ASCII: "sub.subnone.example"},
true, Result{false, StatusFail, dns.Domain{ASCII: "subnone.example"}, &sub, false, nil},
true, Result{false, StatusFail, false, false, dns.Domain{ASCII: "subnone.example"}, &sub, false, nil},
)
// No reject if spf temperror and no other pass.
@ -237,7 +237,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusTemperror,
&dns.Domain{ASCII: "mail.reject.example"},
true, Result{false, StatusTemperror, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
true, Result{false, StatusTemperror, false, false, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
)
// No reject if dkim temperror and no other pass.
@ -253,7 +253,7 @@ func TestVerify(t *testing.T) {
},
spf.StatusNone,
nil,
true, Result{false, StatusTemperror, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
true, Result{false, StatusTemperror, false, false, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
)
// No reject if spf temperror but still dkim pass.
@ -269,7 +269,7 @@ func TestVerify(t *testing.T) {
},
spf.StatusTemperror,
&dns.Domain{ASCII: "mail.reject.example"},
true, Result{false, StatusPass, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
true, Result{false, StatusPass, false, true, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
)
// No reject if dkim temperror but still spf pass.
@ -285,7 +285,7 @@ func TestVerify(t *testing.T) {
},
spf.StatusPass,
&dns.Domain{ASCII: "mail.reject.example"},
true, Result{false, StatusPass, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
true, Result{false, StatusPass, true, false, dns.Domain{ASCII: "reject.example"}, &reject, false, nil},
)
// Bad DMARC record results in permerror without reject.
@ -293,7 +293,7 @@ func TestVerify(t *testing.T) {
[]dkim.Result{},
spf.StatusNone,
nil,
false, Result{false, StatusPermerror, dns.Domain{ASCII: "malformed.example"}, nil, false, ErrSyntax},
false, Result{false, StatusPermerror, false, false, dns.Domain{ASCII: "malformed.example"}, nil, false, ErrSyntax},
)
// DKIM domain that is higher-level than organizational can not result in a pass. ../rfc/7489:525
@ -309,6 +309,6 @@ func TestVerify(t *testing.T) {
},
spf.StatusNone,
nil,
true, Result{true, StatusFail, dns.Domain{ASCII: "example.com"}, &reject, false, nil},
true, Result{true, StatusFail, false, false, dns.Domain{ASCII: "example.com"}, &reject, false, nil},
)
}