Tengo un servidor con la ultima version
y los plugins
ClamAV |
Provides ClamAV anti-virus through MILTER. Versión 1.3.0 (Build 2017070300)Por Laurent Declercq, Rene Schuster y Sascha Bay | Visitar el sito de plug-ins |
Activado | ||
Mailgraph |
Plugin that provides statistical graphics for SMTP traffic (Postfix and Sendmail). Versión 1.1.1 (Build N/D)Por Sascha Bay | Visitar el sito de plug-ins |
Activado | ||
OpenDKIM |
Provides DomainKeys Identified Mail (DKIM) service through MILTER. Versión 2.0.0 (Build 2017090800)Por Laurent Declercq, Sascha Bay y Rene Schuster | Visitar el sito de plug-ins |
Activado | ||
PolicydSPF |
Provides Simple Postfix policy server for RFC 4408/7208 SPF checking. Versión 1.2.0 (Build 2017070300)Por Laurent Declercq y Ninos Ego | Visitar el sito de plug-ins |
Activado | ||
Postgrey |
Provides a greylisting implementation for Postfix using Postgrey policy server. Versión 1.3.0 (Build 2018032000)Por Laurent Declercq | Visitar el sito de plug-ins |
Activado | ||
SpamAssassin |
Provides SpamAssassin spam filter through MILTER. Versión 2.0.1 (Build 2017070300)Por Laurent Declercq, Rene Schuster y Sascha Bay | Visitar el sito de plug-ins |
Activado |
solo tiene un dominio, el cual corre un joomla
cada poco me dice ovh que envio spam, es cada pocas horas, el log me dice esto:
Nov 19 06:25:37 vps602514 postfix/smtpd[30329]: connect from unknown[162.247.99.113]
Nov 19 06:25:40 vps602514 postfix/smtpd[30329]: warning: unknown[162.247.99.113]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Nov 19 06:25:40 vps602514 postfix/smtpd[30329]: disconnect from unknown[162.247.99.113] helo=1 auth=0/1 quit=1 commands=2/3
Nov 19 06:27:24 vps602514 postfix/smtpd[30609]: connect from unknown[24.51.95.89]
Nov 19 06:27:27 vps602514 postfix/smtpd[30609]: warning: unknown[24.51.95.89]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Nov 19 06:27:27 vps602514 postfix/smtpd[30609]: disconnect from unknown[24.51.95.89] helo=1 auth=0/1 quit=1 commands=2/3
Nov 19 06:28:14 vps602514 postfix/smtpd[30609]: warning: hostname no-reverse-dns-configured.com does not resolve to address 80.82.70.189
Nov 19 06:28:14 vps602514 postfix/smtpd[30609]: connect from unknown[80.82.70.189]
Nov 19 06:28:16 vps602514 postfix/smtpd[30609]: warning: unknown[80.82.70.189]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Nov 19 06:28:16 vps602514 postfix/smtpd[30609]: disconnect from unknown[80.82.70.189] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4
Nov 19 06:29:02 vps602514 postfix/smtpd[30609]: connect from unknown[184.71.152.86]
Nov 19 06:29:05 vps602514 postfix/smtpd[30609]: warning: unknown[184.71.152.86]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Nov 19 06:29:05 vps602514 postfix/smtpd[30609]: disconnect from unknown[184.71.152.86] helo=1 auth=0/1 quit=1 commands=2/3
Nov 19 06:29:05 vps602514 postfix/smtpd[30614]: connect from unknown[45.125.65.123]
Nov 19 06:29:07 vps602514 postfix/smtpd[30614]: warning: unknown[45.125.65.123]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Nov 19 06:29:07 vps602514 postfix/smtpd[30614]: lost connection after AUTH from unknown[45.125.65.123]
Nov 19 06:29:07 vps602514 postfix/smtpd[30614]: disconnect from unknown[45.125.65.123] ehlo=1 auth=0/1 commands=1/2
me dicen que si backscatter que si dovecot, llevo un mes intentando solucionarlo, lo he cambiado a tres server diferentes y se repite siempre, he probado con fail2ban, pero ya no se por donde tirar.
Espero que alguien pueda ayudarme.
Un saludo