diff --git a/installer/resources/certificates/router/str4d_at_mail.i2p.crt b/installer/resources/certificates/router/str4d_at_mail.i2p.crt
new file mode 100644
index 000000000..b01c7e329
--- /dev/null
+++ b/installer/resources/certificates/router/str4d_at_mail.i2p.crt
@@ -0,0 +1,32 @@
+-----BEGIN CERTIFICATE-----
+MIIFezCCA2OgAwIBAgIEHLJfZzANBgkqhkiG9w0BAQ0FADBuMQswCQYDVQQGEwJY
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+aRELIpLJZiK+Mos7W+0ZS8SHxGDIosjqVsgbZPmk12+VBcVgLOr8W1D7osS4OY59
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+kGAaEf2JIv/D8+QsC0Un1W09DgvYz7qmKSeHhBixlLe68vgXtz/Fa+rRMsmPrueo
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+hqQ7usTy3oaWD85MbJ0q
+-----END CERTIFICATE-----