Looks like port 587 (authenticated SMTP) is not present in /etc/services. Reproducible: Always Steps to Reproduce: Here's a context diff: *** services Tue Nov 30 10:43:38 2004 --- /etc/services Tue Nov 30 10:30:44 2004 *************** *** 184,189 **** --- 184,191 ---- kshell 544/tcp krcmd # Kerberized `rsh' (v5) nntps 563/tcp snntp # NNTP over SSL nntps 563/udp snntp # NNTP over SSL + submission 587/tcp smtp-auth # authenticated SMTP submission + submission 587/udp smtp-auth # authenticated SMTP submission ldaps 636/tcp # LDAP over SSL ldaps 636/udp # LDAP over SSL kerberos-adm 749/tcp # Kerberos `kadmin' (v5)
was added to 1.11.x a while ago