diff --git a/sendmail.spec b/sendmail.spec
index 53a1987d54289653724e04d3ec7959695d5c528a..a92845bbaded609f2da92b658e07d48f869f8c5f 100644
--- a/sendmail.spec
+++ b/sendmail.spec
@@ -1,6 +1,6 @@
 Name:          sendmail
 Version:       8.17.2
-Release:       3
+Release:       4
 Summary:       A classic mail transfer agent from the Unix world
 License:       Sendmail
 URL:           http://www.sendmail.org/
@@ -24,11 +24,13 @@ Source15:      sendmail-etc-mail-trusted-users
 BuildRequires: openssl-devel openldap-devel libnsl2-devel gdbm-devel
 BuildRequires: cyrus-sasl-devel groff ghostscript m4 systemd setup >= 2.5.31-1
 BuildRequires: gcc
+BuildRequires: libdb-devel
 Requires:      bash >= 2.0 setup >= 2.5.31-1 %{_sbindir}/saslauthd 
 Requires(pre): shadow-utils
 Requires(post): systemd systemd-sysv coreutils %{_sbindir}/alternatives openssl
 Requires(preun): systemd %{_sbindir}/alternatives
 Requires(postun): systemd coreutils %{_sbindir}/alternatives
+Requires:      procmail
 
 Provides:      MTA smtpdaemon server(smtp)
 Provides:      sendmail-cf
@@ -95,14 +97,14 @@ cp devtools/M4/UNIX/library.m4 devtools/M4/UNIX/sharedlibrary.m4
 %set_build_flags
 
 cat << EOF > config.m4
-define(\`confMAPDEF', \`-DNDBM -DNIS -DMAP_REGEX -DSOCKETMAP -DNAMED_BIND=1')
+define(\`confMAPDEF', \`-DHASFLOCK -DNEWDB -DNDBM -DNIS -DMAP_REGEX -DSOCKETMAP -DNAMED_BIND=1')
 define(\`confOPTIMIZE', \`\`\`\`${CFLAGS}'''')
-define(\`confLIBS', \`-lgdbm -lgdbm_compat -lnsl -lcrypt -lresolv')
+define(\`confLIBS', \`-lgdbm -lgdbm_compat -lnsl -lcrypt -lresolv -ldb')
 define(\`confSTDIR', \`%{_localstatedir}/log/mail')
 define(\`confLDOPTS', \`${LDFLAGS}')
 define(\`confMANOWN', \`root')
 define(\`confMANGRP', \`root')
-define(\`confENVDEF', \`-I/usr/kerberos/include -Wall -DXDEBUG=0')
+define(\`confENVDEF', \`-I%{_includedir}/libdb -I/usr/kerberos/include -Wall -DXDEBUG=0')
 define(\`confLIBDIRS', \`-L/usr/kerberos/%{_lib}')
 define(\`confMANMODE', \`644')
 define(\`confMAN1SRC', \`1')
@@ -469,6 +471,12 @@ exit 0
 
 
 %changelog
+* Mon Jul 14 2025 zhangshaoning <zhangshaoning@uniontech.com> - 8.17.2-4
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:recompile with -DNEWDB for hash support
+
 * Wed Feb 12 2025 xinghe <xinghe2@h-partners.com> - 8.17.2-3
 - Type:bugfix
 - ID:NA