Getting "symbol lookup error" after sending mail from mailx.

Issue

• After sending mail from mailx command, following error was coming:

 [user@hostname ~]$ mailx -a /tmp/a -s "This is the subject" user1@domain.com < /dev/null
 Null message body; hope that's ok
 [user@hostname ~]$ send-mail: symbol lookup error: /lib64/libldap-2.4.so.2: undefined symbol: ber_sockbuf_io_udp

• Same error was coming when trying to connect the samba space.