[exim] MYSQL connection failed: Too many connections..

Hey all,

We get these from time to time usually when we are being 'attacked' we
have exim at 150 connections max, and when it's 150 we get these in the
logs..

Warning: ACL "warn" statement skipped: condition test deferred: MYSQL
connection failed: Too many connections

The load on the box is nothing, and I would like to raise it beyond the
150 but I can't seem to find what I need to raise in mysql to make this
work..

any clues?

mysql Ver 14.7 Distrib 4.1.21, for portbld-freebsd6.1 (i386) using 5.0
Threads: 51 Questions: 3210284 Slow queries: 131 Opens: 6874 Flush
tables: 1 Open tables: 8 Queries per second avg: 6.760

at this time there were probably 51 connections..