On 28/05/2020 14:57, mauri via clamav-users wrote:
Hello
Debian 9, ClamAV and ClamSmtp daemon are running, the port are in listen
state….. but if try to telnet to this
Appair the messeges « 421 Server busy, too many connections »
Having a gander at the source code, in common/smtppass.c:
#define SMTP_STARTBUSY "421 Server busy, too many connections" CRLF
...
/* Check to make sure we have a thread */
if(fd != -1)
{
sp_messagex(NULL, LOG_ERR, "too many connections open (max
%d). sent busy response", g_state.max_threads);
write(fd, SMTP_STARTBUSY, KL(SMTP_STARTBUSY));
shutdown(fd, SHUT_RDWR);
close(fd);
fd = -1;
}
Looks like you've run out of threads, and there should be a message in a
log somewhere telling you the maximum, in the source the default is 64.
Of course, there is no telling what the Debian maintainers have done to
the source code, it could be anything.
Cheers,
Gary B-)
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