1 files changed, 2 insertions, 2 deletions

diff --git a/lisp/mail/sendmail.el b/lisp/mail/sendmail.el
index 5226b525ef9..049132dc6e4 100644
--- a/lisp/mail/sendmail.el
+++ b/lisp/mail/sendmail.el
@@ -733,7 +733,7 @@ See also the function `select-sendmail-coding-system'.")
   (require 'mail-utils)
   (let ((errbuf (if mail-interactive
                     (generate-new-buffer " sendmail errors")
-                  nil))
+                  0))
         (tembuf (generate-new-buffer " sendmail temp"))
         (case-fold-search nil)
         resend-to-addresses
@@ -914,7 +914,7 @@ See also the function `select-sendmail-coding-system'.")
                               (or resend-to-addresses
                                   '("-t"))))
                      (exit-value (apply 'call-process-region args)))
-                (or (zerop exit-value)
+                (or (null exit-value) (zerop exit-value)
                     (error "Sending...failed with exit value %d" exit-value)))
             (or fcc-was-found
                 (error "No recipients")))