On Wed, Aug 28, 2013 at 9:35 AM, Michael Richter MRichter@sasag.ch wrote:
mrichter@CL-LINUX-3OG-MR:~$ telnet mxzhh.bluewin.ch 25 Trying 195.186.227.50... Connected to mxzhh.bluewin.ch. Escape character is '^]'. 421 4.4.5 Service unavailable, concurrency limit reached. Connection closed by foreign host.
Trying 195.186.227.50... telnet: connect to address 195.186.227.50: Connection refused telnet: Unable to connect to remote host
This with all 3 MX:
bluewin.ch. 88 IN MX 10 mxbw.bluewin.ch. bluewin.ch. 88 IN MX 42 mxzhb.bluewin.ch. bluewin.ch. 88 IN MX 42 mxzhh.bluewin.ch.
I just wanted to verify this and the very first time it worked:
# telnet mxzhh.bluewin.ch 25 Trying 195.186.227.50... Connected to mxzhh.bluewin.ch. Escape character is '^]'. 220 zhhdzmsp-mxin28.bluewin.ch ESMTP Service (Swisscom Schweiz AG) ready
But right after I got the same error as you:
# telnet mxzhh.bluewin.ch 25 Trying 195.186.227.50... Connected to mxzhh.bluewin.ch. Escape character is '^]'. 421 4.4.5 Service unavailable, concurrency limit reached. Connection closed by foreign host.
But then again...
# telnet mxbw.bluewin.ch 25 Trying 195.186.99.50... Connected to mxbw.bluewin.ch. Escape character is '^]'. 220 zhbdzmsp-mxin15.bluewin.ch ESMTP Service (Swisscom Schweiz AG) ready
# telnet mxbw.bluewin.ch 25 Trying 195.186.99.50... telnet: Unable to connect to remote host: Connection refused
# telnet mxzhb.bluewin.ch 25 Trying 195.186.99.50... Connected to mxzhb.bluewin.ch. Escape character is '^]'. 220 zhbdzmsp-mxin19.bluewin.ch ESMTP Service (Swisscom Schweiz AG) ready
Seem to be very "random" problems: - 421 4.4.5 Service unavailable, concurrency limit reached. - Unable to connect to remote host: Connection refused - Sometimes connection works fine