Can send but Can't Receive Email Error

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1

Hi Guys,

I hope you can assist me in fixing an error in my email system. I was able to save and use in Mail (MAC) POP (port 995) and smtp (port 587). I can send email but cannot receive email. I also see 2 IP address which are not my PC and host IP. What are these 2 IPs (92.118.38.36 & 218.78.72.97) which are located in China and Russia?

Below are the Email Error logs for your analysis.
Sep 15 19:43:03 j61 postfix/smtpd[16227]: warning: unknown[92.118.38.36]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 15 19:43:05 j61 postfix/smtpd[16227]: disconnect from unknown[92.118.38.36] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4
Sep 15 19:43:08 j61 dovecot: pop3-login: Login: user=[email protected], method=PLAIN, rip=49.144.166.64, lip=89.47.162.157, mpid=17734, TLS, session=
Sep 15 19:43:09 j61 dovecot: pop3([email protected])<17734>: Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 15 19:43:15 j61 dovecot: pop3-login: Login: user=[email protected], method=PLAIN, rip=49.144.166.64, lip=89.47.162.157, mpid=17736, TLS, session=<pgIEL5qS/RUxkKZA>
Sep 15 19:43:15 j61 dovecot: pop3([email protected])<17736><pgIEL5qS/RUxkKZA>: Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 15 19:43:34 j61 postfix/smtpd[17361]: warning: hostname ip-38-36.ZervDNS does not resolve to address 92.118.38.36: Name or service not known
Sep 15 19:43:34 j61 postfix/smtpd[17361]: connect from unknown[92.118.38.36]
Sep 15 19:43:38 j61 dovecot: pop3-login: Login: user=[email protected], method=PLAIN, rip=49.144.166.64, lip=89.47.162.157, mpid=17740, TLS, session=
Sep 15 19:43:38 j61 dovecot: pop3([email protected])<17740>: Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 15 19:43:39 j61 postfix/anvil[16230]: statistics: max connection rate 2/60s for (smtp:92.118.38.36) at Sep 15 19:34:35
Sep 15 19:43:39 j61 postfix/anvil[16230]: statistics: max connection count 1 for (smtp:218.78.72.97) at Sep 15 19:33:53
Sep 15 19:43:39 j61 postfix/anvil[16230]: statistics: max cache size 2 at Sep 15 19:33:53
Sep 15 19:43:41 j61 postfix/smtpd[17361]: warning: unknown[92.118.38.36]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 15 19:43:42 j61 dovecot: pop3-login: Login: user=[email protected], method=PLAIN, rip=49.144.166.64, lip=89.47.162.157, mpid=17743, TLS, session=
Sep 15 19:43:43 j61 dovecot: pop3([email protected])<17743>: Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Sep 15 19:43:43 j61 postfix/smtpd[17361]: disconnect from unknown[92.118.38.36] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4

Thanks,
Alona

2

You need to publish MX records before you recieve email to your server.

For more information you can search online about MX records and make sure it is published.

3

Hi CyberPanel,

I have exactly the same MX, SPF, DMARC, DNS, DKIM in Cloudflare and CyberPanel. I have reinstall using CyberPanel and LiteSpeed Enterprise but still cannot receive email. I also installed SSL in MailServer. This are the Error in the Logs.
Sep 19 13:22:20 localhost dovecot: imap-login: Login: user=[email protected], method=PLAIN, rip=49.144.174.148, lip=89.47.162.157, mpid=18554, TLS, session=
Sep 19 13:22:21 localhost dovecot: imap([email protected])<18554>: Logged out in=32 out=520 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Sep 19 13:22:23 localhost postfix/smtpd[18493]: warning: hostname ip-38-36.ZervDNS does not resolve to address 92.118.38.36: Name or service not known
Sep 19 13:22:23 localhost postfix/smtpd[18493]: connect from unknown[92.118.38.36]
Sep 19 13:22:26 localhost postfix/pickup[18105]: EF82FE3B94: uid=0 from=
Sep 19 13:22:26 localhost postfix/cleanup[18570]: EF82FE3B94: message-id=[email protected]
Sep 19 13:22:27 localhost opendkim[995]: EF82FE3B94: DKIM-Signature field added (s=default, d=casaamor.ph)
Sep 19 13:22:27 localhost postfix/qmgr[1256]: EF82FE3B94: from=[email protected], size=20605, nrcpt=1 (queue active)
Sep 19 13:22:27 localhost postfix/pipe[18577]: EF82FE3B94: to=[email protected], orig_to=, relay=dovecot, delay=0.14, delays=0.1/0.01/0/0.03, dsn=5.1.1, status=bounced (user unknown. Command output: lda([email protected]): Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied )
Sep 19 13:22:27 localhost postfix/cleanup[18570]: 139D4E3B95: message-id=[email protected]
Sep 19 13:22:27 localhost postfix/qmgr[1256]: 139D4E3B95: from=<>, size=22963, nrcpt=1 (queue active)
Sep 19 13:22:27 localhost postfix/bounce[18579]: EF82FE3B94: sender non-delivery notification: 139D4E3B95
Sep 19 13:22:27 localhost postfix/qmgr[1256]: EF82FE3B94: removed
Sep 19 13:22:27 localhost postfix/pipe[18577]: 139D4E3B95: to=[email protected], relay=dovecot, delay=0.03, delays=0/0/0/0.02, dsn=5.1.1, status=bounced (user unknown. Command output: lda([email protected]): Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied )
Sep 19 13:22:27 localhost postfix/qmgr[1256]: 139D4E3B95: removed
Sep 19 13:22:29 localhost postfix/smtpd[18493]: warning: unknown[92.118.38.36]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 19 13:22:31 localhost postfix/smtpd[18493]: disconnect from unknown[92.118.38.36] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4

Regards,
Alona

4

AlonaG I have the same problem i think is spamassasin becouse if I delete “-o content_filter=spamassassin” and give # “befour spamassassin unix - n n - - pipe flags=R user=spamd argv=/usr/bin/spamc -e /usr/sbin/sendmail -oi -f ${sender} ${recipient}” in /etc/postfix/master.cf.
Maile receive normal.

log file:
Sep 19 13:55:51 cibilbndi postfix/qmgr[1562]: 40D02700A3C9: from=[email protected], size=2983, nrcpt=1 (queue active)
Sep 19 13:55:51 cibilbndi postfix/qmgr[1562]: warning: connect to transport private/spamassassin: Connection refused

1 Like
5

It’s not Spam Assassin my error log do not mention Spam Assassin.
I think my Postfix and Dovecot are not configured correctly because I don’t know how to configure them if use Let’s Encrypt SSL.

Sep 19 16:18:59 localhost dovecot: imap-login: Login: user=[email protected], method=PLAIN, rip=49.144.174.148, lip=89.47.162.157, mpid=2354, TLS, session=<Vi3ly+eSCHQxkK6U>
Sep 19 16:19:00 localhost dovecot: imap([email protected])<2354><Vi3ly+eSCHQxkK6U>: Logged out in=32 out=520 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Sep 19 16:19:12 localhost postfix/smtpd[1274]: warning: hostname ip-38-36.ZervDNS does not resolve to address 92.118.38.36: Name or service not known
Sep 19 16:19:12 localhost postfix/smtpd[1274]: connect from unknown[92.118.38.36]
Sep 19 16:19:20 localhost postfix/smtpd[1274]: warning: unknown[92.118.38.36]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 19 16:19:22 localhost postfix/smtpd[1274]: disconnect from unknown[92.118.38.36] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4
Sep 19 16:19:51 localhost postfix/smtpd[1274]: warning: hostname ip-38-36.ZervDNS does not resolve to address 92.118.38.36: Name or service not known
Sep 19 16:19:51 localhost postfix/smtpd[1274]: connect from unknown[92.118.38.36]
Sep 19 16:19:58 localhost dovecot: imap-login: Login: user=[email protected], method=PLAIN, rip=49.144.174.148, lip=89.47.162.157, mpid=2406, TLS, session=<tfxkz+eSVHQxkK6U>
Sep 19 16:19:58 localhost postfix/smtpd[1274]: warning: unknown[92.118.38.36]: SASL LOGIN authentication failed: Invalid authentication mechanism
Sep 19 16:19:59 localhost dovecot: imap([email protected])<2406><tfxkz+eSVHQxkK6U>: Logged out in=32 out=520 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Sep 19 16:20:01 localhost postfix/smtpd[1274]: disconnect from unknown[92.118.38.36] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4

6

in my case I must add group and user spamd after fresh install cyberpanel
i use this comands from blog.cyberpanel.net

groupadd spamd
useradd -g spamd -s /bin/false -d /var/log/spamassassin spamd
chown spamd:spamd /var/log/spamassassin

And now email works fine.

7

Hi Cibi,

I use that command but still cannot receive email. Here are the error logs
Sep 20 03:29:58 localhost dovecot: imap([email protected])<3362><wffL+fCSQCIxkKFY>: Logged out in=2304 out=11468 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Sep 20 03:29:58 localhost dovecot: imap([email protected])<3456>: Logged out in=1880 out=10446 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0
Sep 20 03:30:35 localhost postfix[4224]: Postfix is running with backwards-compatible default settings
Sep 20 03:30:35 localhost postfix[4224]: See http://www.postfix.org/COMPATIBILITY_README.html for details
Sep 20 03:30:35 localhost postfix[4224]: To disable backwards compatibility use “postconf compatibility_level=2” and “postfix reload”
Sep 20 03:30:35 localhost postfix/postfix-script[4230]: stopping the Postfix mail system
Sep 20 03:30:35 localhost postfix/master[1247]: terminating on signal 15
Sep 20 03:30:35 localhost postfix[4238]: Postfix is running with backwards-compatible default settings
Sep 20 03:30:35 localhost postfix[4238]: See http://www.postfix.org/COMPATIBILITY_README.html for details
Sep 20 03:30:35 localhost postfix[4238]: To disable backwards compatibility use “postconf compatibility_level=2” and “postfix reload”
Sep 20 03:30:36 localhost postfix/postfix-script[4303]: starting the Postfix mail system
Sep 20 03:30:36 localhost postfix/master[4305]: daemon started – version 3.4.6, configuration /etc/postfix
Sep 20 03:32:09 localhost dovecot: imap-login: Login: user=[email protected], method=PLAIN, rip=49.144.161.88, lip=89.47.162.157, mpid=4422, TLS, session=<xnBQM/GSPhUxkKFY>
Sep 20 03:32:13 localhost dovecot: imap-login: Login: user=[email protected], method=PLAIN, rip=49.144.161.88, lip=89.47.162.157, mpid=4424, TLS, session=<8byNM/GSRhUxkKFY>
Sep 20 03:32:17 localhost dovecot: imap-login: Login: user=[email protected], method=PLAIN, rip=49.144.161.88, lip=89.47.162.157, mpid=4427, TLS, session=<gvbIM/GSShUxkKFY>
Sep 20 03:32:18 localhost dovecot: imap([email protected])<4427><gvbIM/GSShUxkKFY>: Logged out in=32 out=520 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0

Regards,
Alona