diff -Naur heirloom-mailx-12.5/openssl.c heirloom-mailx-12.5-p/openssl.c
--- heirloom-mailx-12.5/openssl.c	2011-04-26 23:23:22.000000000 +0200
+++ heirloom-mailx-12.5-p/openssl.c	2019-04-05 21:21:54.876846795 +0200
@@ -63,6 +63,7 @@
 #include <openssl/x509.h>
 #include <openssl/pem.h>
 #include <openssl/rand.h>
+#include <openssl/engine.h>
 
 #include "rcv.h"
 #include <errno.h>
@@ -137,7 +138,12 @@
 
 	if ((cp = value("ssl-rand-egd")) != NULL) {
 		cp = expand(cp);
-		if (RAND_egd(cp) == -1) {
+#ifndef OPENSSL_NO_EGD
+		if (RAND_egd(cp) == -1)
+#else
+		if (1)
+#endif
+		{
 			fprintf(stderr, catgets(catd, CATSET, 245,
 				"entropy daemon at \"%s\" not available\n"),
 					cp);
@@ -171,6 +177,10 @@
 	verbose = value("verbose") != NULL;
 	if (initialized == 0) {
 		SSL_library_init();
+/* Load all bundled ENGINEs into memory and make them visible */
+ ENGINE_load_builtin_engines();
+ /* Register all of them for every algorithm they collectively implement */
+ ENGINE_register_all_complete();
 		initialized = 1;
 	}
 	if (rand_init == 0)
@@ -216,9 +226,13 @@
 
 	cp = ssl_method_string(uhp);
 	if (cp != NULL) {
+#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1010006fL
+#ifndef OPENSSL_NO_SSL2
 		if (equal(cp, "ssl2"))
 			method = SSLv2_client_method();
-		else if (equal(cp, "ssl3"))
+		else
+#endif
+		if (equal(cp, "ssl3"))
 			method = SSLv3_client_method();
 		else if (equal(cp, "tls1"))
 			method = TLSv1_client_method();
@@ -227,8 +241,25 @@
 					"Invalid SSL method \"%s\"\n"), cp);
 			method = SSLv23_client_method();
 		}
+#else
+		method = NULL;
+		if (equal(cp, "tls"))
+			method = TLS_client_method();
+		else if (equal(cp, "dtls"))
+			method = DTLS_client_method();
+
+		if (!method) {
+			fprintf(stderr, catgets(catd, CATSET, 244,
+					"Invalid SSL method \"%s\"\n"), cp);
+			method = TLS_client_method();
+		}
+#endif
 	} else
+#if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1010006fL
 		method = SSLv23_client_method();
+#else
+		method = TLS_client_method();
+#endif
 	return method;
 }