diff --git a/roles/mail_server/molecule/default/tests/data/x509/parameters-optional-stretch64_imap.key.pem b/roles/mail_server/molecule/default/tests/data/x509/parameters-optional-stretch64_imap.key.pem
new file mode 100644
index 0000000000000000000000000000000000000000..6adc421eec49e449b432aee36c18b3953e6a588f
--- /dev/null
+++ b/roles/mail_server/molecule/default/tests/data/x509/parameters-optional-stretch64_imap.key.pem
@@ -0,0 +1,134 @@
+Public Key Info:
+	Public Key Algorithm: RSA
+	Key Security Level: Medium (2048 bits)
+
+modulus:
+	00:c2:3f:9b:8f:2b:19:54:22:9e:97:ee:10:6b:9d:13
+	10:53:76:3b:64:cd:63:e8:72:fc:74:c5:cf:8f:22:9a
+	70:e1:48:e0:4f:68:6a:50:44:66:f4:c2:bb:2e:a6:cc
+	ed:db:d0:52:03:03:7e:bc:46:55:82:bb:8f:2c:54:66
+	57:0f:7a:22:d9:e9:a5:94:85:f6:a7:fc:98:b8:a2:31
+	17:b2:f6:bd:08:68:d1:f3:8e:cd:54:d8:17:67:ce:95
+	17:9c:0c:90:df:5d:16:4d:ff:6a:ca:70:71:8a:d4:b2
+	e5:b5:55:8d:d8:54:1f:5b:4a:37:c1:e8:4c:f9:54:8e
+	f6:3a:4e:a5:af:b1:11:8c:8d:dc:58:b0:74:7d:2a:c2
+	14:f1:33:34:08:5c:99:43:a6:b6:2c:66:3a:92:c7:a9
+	76:fa:17:1f:04:8b:08:45:c5:55:8a:1a:c6:2c:29:93
+	9e:fd:f6:3e:2f:e5:f8:7b:4c:a8:7c:35:e3:6a:78:8e
+	e4:ed:bb:ba:1a:32:d3:14:80:6b:88:bd:17:a0:67:d1
+	dd:2d:eb:16:10:26:cd:ee:d2:3e:5f:d5:89:9e:10:65
+	03:5a:d4:e4:6e:08:f3:da:66:e1:d0:45:2a:17:d6:88
+	5c:ec:92:ce:c9:1f:9a:6f:4b:7f:85:06:f6:d8:1d:d3
+	9f:
+
+public exponent:
+	01:00:01:
+
+private exponent:
+	5d:92:6a:8b:33:05:c6:83:ce:c5:fd:46:27:b0:c8:c8
+	2a:8c:5f:dc:15:1c:b5:92:fe:8d:f9:e4:1c:5d:5c:ec
+	57:79:d5:a4:2a:f6:5b:a8:37:b8:5c:3d:f3:21:22:c2
+	ca:0a:b6:17:01:8e:01:80:18:1d:1b:e0:c2:47:fd:ec
+	9e:66:05:77:d7:97:8d:ce:62:9d:55:8e:f4:12:1d:77
+	ff:1b:e0:bf:b6:4e:bc:f6:e3:6e:a5:91:d0:cd:b1:00
+	68:89:9d:18:1c:2d:6c:71:47:ae:31:30:60:e2:49:33
+	62:80:ce:0d:91:a8:71:3f:75:50:91:68:d3:0a:aa:ba
+	96:70:02:24:75:b9:3c:3b:b6:6a:58:22:57:63:a7:02
+	83:b0:7c:20:f8:cb:0b:8c:f0:12:bd:ac:53:65:3c:56
+	54:3f:78:29:6f:57:9b:b6:f3:54:48:2b:84:9d:3e:8e
+	d1:55:fb:02:90:d7:1c:2e:13:6d:83:95:2d:a2:af:1c
+	a7:e6:78:de:48:15:e5:5c:d0:27:0d:05:75:c3:b5:52
+	63:19:32:5c:dd:2e:8f:5a:9f:ed:24:cd:a9:f6:b5:31
+	7d:16:74:76:fd:02:68:c2:12:35:7e:ae:93:21:19:8b
+	5d:83:f8:bb:08:04:cf:84:9d:fe:45:b5:7d:2a:4f:c1
+	
+
+prime1:
+	00:f4:0a:66:6e:fd:99:89:9a:31:35:ca:6c:48:31:7e
+	8b:3d:06:7c:76:98:ac:8f:16:69:0b:98:89:64:56:1c
+	be:ee:b0:87:ec:c1:f2:e5:77:57:0d:41:c7:73:c7:91
+	b8:67:39:70:a9:ca:81:f4:e4:7f:a0:58:96:51:18:aa
+	c8:ac:e4:5d:3e:66:3b:8f:1e:be:02:7e:2e:09:b2:86
+	b6:c9:37:c6:3b:82:ca:12:fd:02:8b:90:16:20:12:a4
+	1c:5c:96:e3:18:c1:f1:e5:df:08:fe:62:67:17:c4:c5
+	48:8d:2c:b3:9b:e5:af:f9:25:26:19:2b:8e:92:2d:9b
+	11:
+
+prime2:
+	00:cb:c4:8a:db:5f:5d:76:8f:cf:38:83:3a:14:b7:5d
+	fc:ed:30:55:cb:c0:cf:86:c7:d5:a3:15:8b:8c:12:bd
+	e9:53:79:8f:d6:0e:e8:d1:24:fc:98:ae:81:72:54:d8
+	5d:ba:01:49:d0:4a:0f:4a:25:cc:8c:ba:9f:22:bf:e9
+	4e:32:40:8f:ec:38:5f:f2:58:14:ab:e9:15:41:d8:b4
+	67:4f:71:2d:f3:6d:0e:a3:a9:20:74:87:ec:00:59:11
+	3a:66:50:28:1d:5c:ba:73:c5:ca:a6:1f:62:3e:e2:51
+	b2:3e:de:fe:1b:23:1d:5f:94:3e:f6:71:11:7b:e5:a3
+	af:
+
+coefficient:
+	02:d3:29:69:75:11:ce:8f:c0:b0:60:50:8e:b3:f2:04
+	18:53:92:fd:ca:1b:27:e4:07:ba:36:bc:4b:13:7e:9d
+	38:c7:fa:c6:16:71:1d:6e:c8:ad:99:fd:29:f4:67:4b
+	a0:3e:db:9b:9a:14:fe:a1:0c:a3:4f:67:8c:a7:c3:e9
+	b5:a0:97:2b:4e:1b:05:2d:3b:d3:c5:eb:58:16:61:13
+	9f:fa:93:4c:47:62:e4:28:64:5a:b6:1d:4b:62:c3:9b
+	95:40:7b:dc:84:20:c3:48:5f:e2:cc:92:5b:1c:67:4c
+	dc:76:fe:6f:85:ac:29:3e:ce:2c:1d:1e:16:6a:e9:64
+	
+
+exp1:
+	43:03:fc:1f:2c:9b:16:33:76:a2:0b:e5:72:69:cd:13
+	55:7d:cb:7e:11:ed:09:1a:21:5c:a2:d5:cf:ec:e9:d5
+	f0:dc:1f:67:7f:d7:40:f6:65:bc:69:3c:e9:69:7b:75
+	c5:3a:fb:da:54:97:1d:76:06:2a:35:49:8a:19:99:04
+	a4:9d:cd:91:4e:27:ba:e4:b9:4f:1b:f1:6e:8e:4c:fa
+	33:05:92:f5:52:b4:45:44:9f:87:4d:d9:15:93:a8:e7
+	74:f1:a6:89:6c:f1:0d:ac:12:df:30:8c:98:f5:5b:2b
+	d2:40:dd:4d:c9:64:6a:a9:ad:ed:a9:8d:6c:4d:03:d1
+	
+
+exp2:
+	0f:21:ea:79:fe:2c:0f:b9:00:57:9f:0f:3a:28:9f:f7
+	3f:9a:1e:55:02:5d:a7:11:c2:20:d9:61:c2:a6:45:aa
+	45:43:ba:d5:d7:c7:9c:78:95:b5:b5:07:f1:f8:b1:14
+	cc:d2:79:ab:d9:44:27:6a:85:35:52:4a:ad:26:f9:69
+	90:3b:d1:34:66:bf:61:5c:ff:34:01:1c:4e:06:8c:e7
+	3b:34:19:88:81:69:db:e7:9c:7c:6a:f7:b0:d2:ec:7f
+	9c:c7:89:23:1d:16:cf:b0:39:ab:7a:9b:2e:36:5a:80
+	d5:40:74:38:89:b4:0d:bc:11:ac:f5:9a:a9:cb:d5:0b
+	
+
+
+Public Key PIN:
+	pin-sha256:mjtOqewy1ksBQMKsocXavXOMb4myTRZPF19oV/Q/fSg=
+Public Key ID:
+	sha256:9a3b4ea9ec32d64b0140c2aca1c5dabd738c6f89b24d164f175f6857f43f7d28
+	sha1:dede2d62628b84bba50ea7c59e70f2ff8b5ae360
+
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----