Email authentication not working with local sender

speckados

Well-Known Member
Hi..

Simple not work when:
  • user send is local address
  • user receiver is local address
Cpanel CloudLinux 6.0 v 74.0.9
CSF SMTP_LOCAL = 1
WHM FKA SMTP Tweak off (try inverse)

Proff concpet
Code:
telnet cp430.myserver.com 25
Trying 178.33.111.168...
Connected to cp430.myserver.com.
Escape character is '^]'.
ehlo cp430.myserver.com

220-cp430.myserver.com ESMTP Exim 4.91 #1 Tue, 16 Oct 2018 17:04:31 +0200
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.
250-cp430.myserver.com Hello 230.red-2-137-130.dynamicip.rima-tde.net [2.137.110.123]
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP
500 unrecognized command
mail from: [email protected]
250 OK
rcpt to: [email protected]
250 Accepted
data
354 Enter message, ending with "." on a line by itself
Prueba test
.
250 OK id=1gCQuo-003QX8-7W
421 cp430.myserver.com: SMTP command timeout - closing connection
Connection closed by foreign host.
 

cPanelMichael

Administrator
Staff member
Apr 11, 2011
47,904
2,226
463
421 cp430.myserver.com: SMTP command timeout - closing connection
Hello @speckados,

Can you post the output from /var/log/exim_mainlog when you reproduce the 421 error code using telnet?

Thank you.