EHLO Disconnect

Gateway
1

Hey there.
I am receiving a timeout after EHLO from system[IP]
diconnect from system[IP]

2

So this is for incoming connections?, i.e., from a remote SMTP to the
CipherMail gateway?

The SMTP part of the CipherMail gateway is handled by Postfix.

Is there more information from the logs? Can you check the logs on the
other system?

Kind regards,

Martijn Brinkers

ยทยทยท

On 09-06-2020 20:46, bmaclenn--- via Users wrote:

I am receiving a timeout after EHLO from system[IP]
diconnect from system[IP]

From system[IP] I can telnet and send email correctly? Any ideas where to look?

--
CipherMail email encryption
Email encryption with support for S/MIME,
OpenPGP, PDF encryption and secure webmail pull.

W: https://www.ciphermail.com/
E: info(a)ciphermail.com
T: +31 20 290 0088

3

Hi Martijn,

Ciphermail is our SMTP server and is used with DLP to encrypt outgoing messages. The system is authorized to relay messages through this server.
I place a debug line in postfix - this is the output. (I cleaned out some of the other match_hostaddr from the list)

Jun 10 08:19:23 ems postfix/master[82504]: daemon started -- version 2.10.1, configuration /etc/postfix
Jun 10 08:21:16 ems postfix/smtpd[82508]: connect from unknown[10.10.20.210]
Jun 10 08:21:16 ems postfix/smtpd[82508]: smtp_stream_setup: maxtime=300 enable_deadline=0
Jun 10 08:21:16 ems postfix/smtpd[82508]: match_hostname: unknown ~? 127.0.0.0/8
Jun 10 08:21:16 ems postfix/smtpd[82508]: match_hostaddr: 10.10.20.210 ~? 127.0.0.0/8
Jun 10 08:21:16 ems postfix/smtpd[82508]: match_hostname: unknown ~? [::1]/128
Jun 10 08:21:16 ems postfix/smtpd[82508]: match_hostaddr: 10.10.20.210 ~? [::1]/128
Jun 10 08:21:16 ems postfix/smtpd[82508]: match_hostaddr: 10.10.20.210 ~? 10.10.20.210
Jun 10 08:21:16 ems postfix/smtpd[82508]: name_mask: silent-discard
Jun 10 08:21:16 ems postfix/smtpd[82508]: name_mask: dsn
Jun 10 08:21:16 ems postfix/smtpd[82508]: name_mask: etrn
Jun 10 08:21:16 ems postfix/smtpd[82508]: > unknown[10.10.20.210]: 220 ems.jc.ca ESMTP CipherMail
Jun 10 08:21:16 ems postfix/smtpd[82508]: watchdog_pat: 0x556660d87140
Jun 10 08:21:16 ems postfix/smtpd[82508]: < unknown[10.10.20.210]: EHLO d.jc.ca
Jun 10 08:21:16 ems postfix/smtpd[82508]: match_list_match: unknown: no match
Jun 10 08:21:16 ems postfix/smtpd[82508]: match_list_match: 10.10.20.210: no match
Jun 10 08:21:16 ems postfix/smtpd[82508]: > unknown[10.10.20.210]: 250-ems.jc.ca
Jun 10 08:21:16 ems postfix/smtpd[82508]: > unknown[10.10.20.210]: 250-PIPELINING
Jun 10 08:21:16 ems postfix/smtpd[82508]: > unknown[10.10.20.210]: 250-SIZE 20240000
Jun 10 08:21:16 ems postfix/smtpd[82508]: > unknown[10.10.20.210]: 250-VRFY
Jun 10 08:21:16 ems postfix/smtpd[82508]: > unknown[10.10.20.210]: 250-ENHANCEDSTATUSCODES
Jun 10 08:21:16 ems postfix/smtpd[82508]: > unknown[10.10.20.210]: 250 8BITMIME
Jun 10 08:21:16 ems postfix/smtpd[82508]: watchdog_pat: 0x556660d87140
Jun 10 08:21:17 ems postfix/smtpd[82508]: smtp_get: EOF
Jun 10 08:21:17 ems postfix/smtpd[82508]: match_hostname: unknown ~? 10.10.20.210
Jun 10 08:21:17 ems postfix/smtpd[82508]: match_hostaddr: 10.10.20.210 ~? 10.10.20.210
Jun 10 08:21:17 ems postfix/smtpd[82508]: lost connection after EHLO from unknown[10.10.20.210]
Jun 10 08:21:17 ems postfix/smtpd[82508]: disconnect from unknown[10.10.20.210]