User Guide

Appendix A 89
mta_outgoing_connections_curre
nt
Number of simultaneous outgoing
connections at the moment the report was
generated.
mta_outgoing_connections_maxi
mum
Maximum number of outgoing connections
from the server since the server
initialization.
mta_outgoing_connection_errors
Number of outgoing connection errors since
the server initialization.
mta_outgoing_connections_failed
_total
Total number of rejected outgoing
connections from the server since its
initialization.
mta_outgoing_connections_failed
_through_cache
Total number of outgoing connections that
were rejected since the server initialization
because information about the host was
found in the cache of unavailable hosts.
mta_routing_queries_total
Total number of routing queries since the
server initialization.
mta_dns_queries_total
Total number of DNS queries since the
server initialization.
mta_dns_queries_through_cache
Number of cached DNS queries since the
server initialization.
mta_dns_queries_failed
Number of failed DNS queries since the
server initialization.
mta_receivings_refused_total
Total number of incoming connections
rejected by the server since its initialization.
mta_receivings_refused_for_mes
sage_size_limit
Total number of incoming connections
rejected by the server because of the
message size since server startup.
mta_receivings_refused_for_sessi
on_size_limit
Number of incoming messages rejected by
the server since its initialization because of
the session size limit.