CentOS - Mar 2013 - sendmail stops accepting e-mail after sending 40 to 50 messages

i have a centos box (vps) with sendmail and i'am using it to 
send a newsletter to mail clients. 

I'am using a machine in my local network to send the e-mails 
via SMTP (AUTH PLAIN) but after sending some e-mail (35 .. 50) 
the connection starts to get closed by the server 
(centos/sendmail)

I've searched google for a limit configuration on number of 
e-mails in sendmail but didn't find anything.

any ideias on what configuration can i use to allow me to 
send more e-mails?

Am 11.03.2013 09:30, schrieb pedro figueiredo:
> i have a centos box (vps) with sendmail and i'am using it to 
> send a newsletter to mail clients. 
> 
> I'am using a machine in my local network to send the e-mails 
> via SMTP (AUTH PLAIN) but after sending some e-mail (35 .. 50) 
> the connection starts to get closed by the server 
> (centos/sendmail)
> 
> I've searched google for a limit configuration on number of 
> e-mails in sendmail but didn't find anything.
> 
> any ideias on what configuration can i use to allow me to 
> send more e-mails?
Read your maillog. It will for sure tell you why the acceptance of mails
stops. Typically that is due to the load level. Sendmail comes with such
a feature which is configurable.

https://www.sendmail.com/sm/open_source/docs/m4/tweaking_config.html#confREFUSE_LA

Alexander