diff --git a/roles/mail_server/molecule/default/tests/data/x509/parameters-optional-stretch64_smtp.key.pem b/roles/mail_server/molecule/default/tests/data/x509/parameters-optional-stretch64_smtp.key.pem
new file mode 100644
index 0000000000000000000000000000000000000000..6b1b98801dbfb64e04e7047038cc81e074d1ff57
--- /dev/null
+++ b/roles/mail_server/molecule/default/tests/data/x509/parameters-optional-stretch64_smtp.key.pem
@@ -0,0 +1,134 @@
+Public Key Info:
+	Public Key Algorithm: RSA
+	Key Security Level: Medium (2048 bits)
+
+modulus:
+	00:e1:a9:02:b1:d4:be:ab:4f:ab:73:07:64:c3:a0:64
+	39:c4:15:14:e9:47:2c:46:e8:b6:8b:4a:19:c9:87:f8
+	0a:0e:78:43:b6:96:c9:2d:aa:f8:39:08:05:ad:08:d1
+	4d:94:43:31:21:9e:bd:c7:59:78:4c:39:c4:62:82:6a
+	e3:1a:1f:a0:df:97:24:be:c8:19:d2:32:41:5e:8b:fe
+	4d:ad:5c:73:2a:3a:2d:e6:17:4b:de:ff:42:ca:c0:64
+	29:38:fd:8d:5f:04:d3:77:a2:55:b5:b3:24:30:da:6e
+	dc:07:0f:b6:49:44:03:bc:2e:bf:a8:8b:ad:b4:ac:e1
+	10:82:35:0c:2e:ec:10:07:f6:40:ff:af:99:7c:f4:f8
+	72:84:d7:f5:9a:19:10:1a:a2:94:90:a1:ef:ad:cc:37
+	a9:d2:9a:e9:b1:95:37:8e:b7:9a:20:8c:aa:ef:c1:00
+	87:d6:86:c4:1e:5d:ac:12:65:81:b5:53:25:2a:92:d0
+	78:b1:2e:c2:f0:a5:7f:e8:d1:15:de:74:e9:7b:02:d7
+	58:36:cf:c2:5b:2f:58:b7:ad:95:bd:64:a9:95:f9:3c
+	0a:ce:8c:9d:87:75:75:4c:ab:99:db:6e:b8:b1:7b:f6
+	36:c5:e6:cb:08:38:2e:72:9b:5e:22:97:be:9c:cc:84
+	b9:
+
+public exponent:
+	01:00:01:
+
+private exponent:
+	4d:cd:bc:04:1c:59:f1:2e:f2:ea:22:2e:77:d4:a1:39
+	d9:85:7b:44:43:29:dc:f8:f7:97:66:e1:25:3f:20:22
+	37:82:f7:b5:c8:9f:6c:83:7a:3a:0f:ae:05:4e:f8:fb
+	4a:97:30:25:6b:59:fb:95:b9:88:6e:92:6b:74:93:ed
+	e1:5f:ee:53:a9:05:1e:52:57:b4:c5:67:0c:76:30:24
+	10:15:c4:0f:57:27:e4:21:3c:23:92:d7:30:98:cc:ef
+	f9:9a:52:57:e4:8e:14:bd:7f:d7:ba:00:4c:67:c3:b9
+	51:25:f5:af:a5:27:b4:86:59:c6:7f:02:51:3d:1a:0b
+	b5:4f:83:24:6e:73:1c:a0:1a:46:71:1f:b8:3e:ab:19
+	a9:7d:1e:54:92:a3:a1:ed:8b:e0:55:91:5b:13:ee:e9
+	e7:1b:4a:3f:60:f7:7d:78:4e:0c:a0:e4:b3:95:d1:03
+	0a:1d:bc:e1:e4:9c:0f:cb:fd:d6:86:e2:de:d8:4f:cf
+	54:0e:d3:50:a3:dc:8a:b9:e6:40:83:bc:e3:a4:c4:ed
+	65:97:5a:a2:5c:1e:a8:2a:cb:be:e9:9b:b5:e8:8f:e0
+	44:b1:7f:ff:88:0e:dc:93:d8:76:7b:a7:27:8b:83:13
+	f4:0c:67:96:eb:4a:5e:17:39:61:52:c6:be:16:25:41
+	
+
+prime1:
+	00:f6:22:43:f8:65:09:7f:9f:8d:71:c3:81:0b:46:09
+	f8:91:57:f0:5d:b7:de:f4:87:0f:c4:f7:bb:a5:81:85
+	43:0a:c2:f5:23:cb:77:2f:a2:e7:0b:56:4b:c1:46:a3
+	99:49:be:f0:82:7a:bd:8b:e3:15:3c:ec:5f:76:3d:98
+	dd:1b:87:d0:e3:ed:fe:98:7f:92:e4:b3:db:ba:26:ac
+	92:99:70:37:bb:6e:0f:6c:ca:21:2c:ed:db:d3:96:57
+	b2:6b:14:f7:25:bb:18:60:cb:e8:b7:17:39:fc:03:8d
+	ce:a9:fc:a0:2d:4b:e2:68:81:e5:0d:17:b0:1f:2c:3a
+	0d:
+
+prime2:
+	00:ea:b4:a6:e7:b3:ab:2e:b5:84:c1:f4:2e:d0:c7:3a
+	b2:74:ab:64:3f:7e:df:6f:3c:ab:bf:5e:0c:de:db:54
+	1e:a8:3e:5b:aa:b5:b0:41:89:37:89:3c:e1:ea:f8:a8
+	26:4c:f6:e0:b5:be:f8:fd:3d:cb:4a:b6:84:04:f6:61
+	e4:af:01:73:c1:51:41:40:1c:c0:2c:2b:94:71:da:36
+	42:12:f6:da:dc:c4:4f:a2:3e:a2:b9:47:b0:5a:83:d1
+	59:04:3c:18:35:50:e1:a6:5e:fa:4d:c2:c9:f2:07:ac
+	40:df:ae:f0:f2:5d:70:dd:fc:bf:5d:99:57:d9:b3:a6
+	5d:
+
+coefficient:
+	00:a3:82:3f:d4:14:39:77:9a:df:dd:af:4c:48:d6:f4
+	a9:54:57:1d:7e:31:a9:3c:b5:41:7e:b3:8c:91:70:db
+	02:50:91:2d:7d:6b:d6:54:61:04:70:b9:59:01:7a:b7
+	68:c0:7d:ed:fd:3c:bb:b2:bb:18:d0:c4:c9:f7:e5:c0
+	c3:82:2b:d2:c4:ed:9a:c4:73:20:0d:75:d7:12:44:bb
+	bc:ad:15:4b:88:54:a4:4e:f8:26:a6:dd:83:96:dc:50
+	be:06:91:8b:6d:f3:c6:7d:27:12:7a:69:fa:f9:4c:71
+	a8:64:63:e2:22:da:c3:e6:de:96:25:21:5e:77:57:a1
+	b2:
+
+exp1:
+	52:de:4c:86:27:f6:5f:ba:a7:53:a3:20:22:5c:8d:64
+	dc:02:80:91:fd:23:1a:af:12:77:1d:75:57:0e:d9:80
+	2d:f2:5f:b8:92:7b:69:55:6e:76:99:b2:5d:bb:5b:bf
+	73:5d:ce:fa:0f:3b:1c:0a:f3:8e:94:82:bb:7b:97:a8
+	f1:e8:f3:42:9a:51:7a:a4:91:1f:61:12:dc:84:c2:db
+	84:bf:8c:74:15:65:2a:1a:8f:ba:e1:c6:7e:61:82:db
+	36:44:53:c5:a7:4d:58:e1:ae:53:5e:85:8e:3c:e0:14
+	b1:94:b5:95:2a:94:6a:dd:38:f2:04:84:ae:aa:24:4d
+	
+
+exp2:
+	18:99:88:a8:de:5f:01:cd:4a:b5:dd:77:0e:b0:e3:09
+	13:4b:67:7d:74:39:cc:f9:e9:f2:6b:d4:23:83:8f:84
+	8b:13:c6:1d:d5:5f:3c:ef:39:df:eb:7e:ae:57:13:a0
+	b8:0e:64:2d:08:70:26:72:d4:9c:e7:16:5d:42:c9:ad
+	e3:5d:de:99:13:80:28:4d:1b:23:46:0a:10:08:d4:09
+	06:dd:d2:c0:b2:de:b9:dd:a0:c6:94:a9:fa:42:b8:ad
+	80:d1:1f:a4:6e:ee:c7:b6:4a:bb:dd:bf:b6:db:71:05
+	77:ac:69:5a:ad:ca:87:a9:d7:10:e3:62:9e:d1:c2:8d
+	
+
+
+Public Key PIN:
+	pin-sha256:bpr41AjcEFiNhkgvoaVfnWDAbb/V6ytxSq6ZDEZF9gA=
+Public Key ID:
+	sha256:6e9af8d408dc10588d86482fa1a55f9d60c06dbfd5eb2b714aae990c4645f600
+	sha1:bf874a4fc3bb254a71e02af5b2300e133217e81d
+
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----