Concurrency Limits

[DOODS]

Hi to everyone!
I've been using qmail's concurrency limit defaults of 10 for local and 20
for remote since I first ran qmail. Lately however, I see that my remote
deliveries always reach the limit.
All I see in the man pages about limits is their default values. Now how
can I change these values and should I restart my qmail-send process?
Thanks in advance and more power to all!

-->ECJ