diff --git a/packages/busybox/build.sh b/packages/busybox/build.sh
index 2672df593..d91ca3406 100755
--- a/packages/busybox/build.sh
+++ b/packages/busybox/build.sh
@@ -2,7 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://busybox.net/
 TERMUX_PKG_DESCRIPTION="Tiny versions of many common UNIX utilities into a single small executable"
 TERMUX_PKG_ESSENTIAL=yes
 TERMUX_PKG_VERSION=1.27.1
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SHA256=c890ac53fb218eb4c6ad9ed3207a896783b142e6d306f292b8d9bec82af5f936
 TERMUX_PKG_SRCURL=https://busybox.net/downloads/busybox-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_BUILD_IN_SRC=yes
diff --git a/packages/busybox/sendmail.patch b/packages/busybox/sendmail.patch
new file mode 100644
index 000000000..da578ee0d
--- /dev/null
+++ b/packages/busybox/sendmail.patch
@@ -0,0 +1,13 @@
+diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c
+index 8ddb782..b542099 100644
+--- a/mailutils/sendmail.c
++++ b/mailutils/sendmail.c
+@@ -150,7 +150,7 @@ static char *sane_address(char *str)
+ 	trim(str);
+ 	s = str;
+ 	while (*s) {
+-		if (!isalnum(*s) && !strchr("+_-.@", *s)) {
++		if (!isalnum(*s) && !strchr("=+_-.@", *s)) {
+ 			bb_error_msg("bad address '%s'", str);
+ 			/* returning "": */
+ 			str[0] = '\0';