diff --git a/modules/core-module/src/main/java/org/simplejavamail/config/ConfigLoader.java b/modules/core-module/src/main/java/org/simplejavamail/config/ConfigLoader.java
index 2600bbd5..b412a770 100644
--- a/modules/core-module/src/main/java/org/simplejavamail/config/ConfigLoader.java
+++ b/modules/core-module/src/main/java/org/simplejavamail/config/ConfigLoader.java
@@ -79,6 +79,9 @@
  * <li>simplejavamail.smime.signing.key_alias</li>
  * <li>simplejavamail.smime.signing.key_password</li>
  * <li>simplejavamail.smime.encryption.certificate</li>
+ * <li>simplejavamail.smime.signing.algorithm</li>
+ * <li>simplejavamail.smime.encryption.key_encapsulation_algorithm</li>
+ * <li>simplejavamail.smime.encryption.cipher</li>
  * <li>simplejavamail.dkim.signing.private_key_file_or_data</li>
  * <li>simplejavamail.dkim.signing.selector</li>
  * <li>simplejavamail.dkim.signing.signing_domain</li>
@@ -175,6 +178,9 @@ public enum Property {
 		SMIME_SIGNING_KEYSTORE_PASSWORD("simplejavamail.smime.signing.keystore_password"),
 		SMIME_SIGNING_KEY_ALIAS("simplejavamail.smime.signing.key_alias"),
 		SMIME_SIGNING_KEY_PASSWORD("simplejavamail.smime.signing.key_password"),
+		SMIME_SIGNING_ALGORITHM("simplejavamail.smime.signing.algorithm"),
+		SMIME_ENCRYPTION_KEY_ENCAPSULATION_ALGORITHM("simplejavamail.smime.encryption.key_encapsulation_algorithm"),
+		SMIME_ENCRYPTION_CIPHER("simplejavamail.smime.encryption.cipher"),
 		DKIM_PRIVATE_KEY_FILE_OR_DATA("simplejavamail.dkim.signing.private_key_file_or_data"),
 		DKIM_SELECTOR("simplejavamail.dkim.signing.selector"),
 		DKIM_SIGNING_DOMAIN("simplejavamail.dkim.signing.signing_domain"),
diff --git a/modules/simple-java-mail/src/test/resources/simplejavamail.properties b/modules/simple-java-mail/src/test/resources/simplejavamail.properties
index c3d11e7f..ae3ba22d 100644
--- a/modules/simple-java-mail/src/test/resources/simplejavamail.properties
+++ b/modules/simple-java-mail/src/test/resources/simplejavamail.properties
@@ -31,6 +31,9 @@ simplejavamail.smime.signing.keystore_password=letmein
 simplejavamail.smime.signing.key_alias=smime_test_user_alias
 simplejavamail.smime.signing.key_password=letmein
 simplejavamail.smime.encryption.certificate=src/test/resources/pkcs12/smime_test_user.pem.standard.crt
+simplejavamail.smime.signing.algorithm=
+simplejavamail.smime.encryption.key_encapsulation_algorithm=
+simplejavamail.smime.encryption.cipher=
 simplejavamail.dkim.signing.private_key_file_or_data=
 simplejavamail.dkim.signing.selector=
 simplejavamail.dkim.signing.signing_domain=
diff --git a/modules/spring-module/src/main/java/org/simplejavamail/springsupport/SimpleJavaMailSpringSupport.java b/modules/spring-module/src/main/java/org/simplejavamail/springsupport/SimpleJavaMailSpringSupport.java
index 93b0eb18..3ca0dc46 100644
--- a/modules/spring-module/src/main/java/org/simplejavamail/springsupport/SimpleJavaMailSpringSupport.java
+++ b/modules/spring-module/src/main/java/org/simplejavamail/springsupport/SimpleJavaMailSpringSupport.java
@@ -75,6 +75,9 @@
  * <li>simplejavamail.smime.signing.key_password</li>
  * <li>simplejavamail.smime.signing.key-password</li>
  * <li>simplejavamail.smime.encryption.certificate</li>
+ * <li>simplejavamail.smime.signing.algorithm</li>
+ * <li>simplejavamail.smime.encryption.key_encapsulation_algorithm</li>
+ * <li>simplejavamail.smime.encryption.cipher</li>
  * <li>simplejavamail.dkim.signing.private_key_file_or_data</li>
  * <li>simplejavamail.dkim.signing.private-key-file-or-data</li>
  * <li>simplejavamail.dkim.signing.selector</li>
@@ -158,6 +161,9 @@ public MailerGenericBuilder<?> loadGlobalConfigAndCreateDefaultMailer(
 			@Nullable @Value("${simplejavamail.smime.signing.key_password:#{null}}") final String smimeSigningKeyPassword,
 			@Nullable @Value("${simplejavamail.smime.signing.key-password:#{null}}") final String smimeSigningKeyPasswordSpringBoot,
 			@Nullable @Value("${simplejavamail.smime.encryption.certificate:#{null}}") final String smimeEncryptionCertificate,
+			@Nullable @Value("${simplejavamail.smime.signing.algorithm:#{null}}") final String smimeSigningAlgorithm,
+			@Nullable @Value("${simplejavamail.smime.encryption.key_encapsulation_algorithm:#{null}}") final String smimeEncryptionKeyEncapsulationAlgorithm,
+			@Nullable @Value("${simplejavamail.smime.encryption.cipher:#{null}}") final String smimeEncryptionCipher,
 			@Nullable @Value("${simplejavamail.dkim.signing.private_key_file_or_data:#{null}}") final String dkimSigningPrivateKeyFileOrData,
 			@Nullable @Value("${simplejavamail.dkim.signing.private-key-file-or-data:#{null}}") final String dkimSigningPrivateKeyFileOrDataSpringBoot,
 			@Nullable @Value("${simplejavamail.dkim.signing.selector:#{null}}") final String dkimSigningSelector,
@@ -241,6 +247,15 @@ public MailerGenericBuilder<?> loadGlobalConfigAndCreateDefaultMailer(
 		} else {
 			setNullableProperty(emailProperties, Property.SMIME_SIGNING_KEY_PASSWORD.key(), smimeSigningKeyPasswordSpringBoot);
 		}
+		if (smimeSigningAlgorithm != null) {
+			setNullableProperty(emailProperties, Property.SMIME_SIGNING_ALGORITHM.key(), smimeSigningAlgorithm);
+		}
+		if (smimeEncryptionKeyEncapsulationAlgorithm != null) {
+			setNullableProperty(emailProperties, Property.SMIME_ENCRYPTION_KEY_ENCAPSULATION_ALGORITHM.key(), smimeEncryptionKeyEncapsulationAlgorithm);
+		}
+		if (smimeEncryptionCipher != null) {
+			setNullableProperty(emailProperties, Property.SMIME_ENCRYPTION_CIPHER.key(), smimeEncryptionCipher);
+		}
 		setNullableProperty(emailProperties, Property.SMIME_ENCRYPTION_CERTIFICATE.key(), smimeEncryptionCertificate);
 		if (dkimSigningPrivateKeyFileOrData != null) {
 			setNullableProperty(emailProperties, Property.DKIM_PRIVATE_KEY_FILE_OR_DATA.key(), dkimSigningPrivateKeyFileOrData);
diff --git a/modules/spring-module/src/test/resources/simplejavamail.properties b/modules/spring-module/src/test/resources/simplejavamail.properties
index 662aa3f6..cbe1afa4 100644
--- a/modules/spring-module/src/test/resources/simplejavamail.properties
+++ b/modules/spring-module/src/test/resources/simplejavamail.properties
@@ -31,6 +31,9 @@ simplejavamail.smime.signing.keystore_password=letmein
 simplejavamail.smime.signing.key_alias=smime_test_user_alias
 simplejavamail.smime.signing.key_password=letmein
 simplejavamail.smime.encryption.certificate=
+simplejavamail.smime.signing.algorithm=
+simplejavamail.smime.encryption.key_encapsulation_algorithm=
+simplejavamail.smime.encryption.cipher=
 simplejavamail.dkim.signing.private_key_file_or_data=
 simplejavamail.dkim.signing.selector=
 simplejavamail.dkim.signing.signing_domain=