Can send but Can't Receive Email Error

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=charlie@casaamor.ph, method=PLAIN, rip=49.144.166.64, lip=89.47.162.157, mpid=17734, TLS, session=
Sep 15 19:43:09 j61 dovecot: pop3(charlie@casaamor.ph)<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=charlie@casaamor.ph, 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(charlie@casaamor.ph)<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=charlie@casaamor.ph, method=PLAIN, rip=49.144.166.64, lip=89.47.162.157, mpid=17740, TLS, session=
Sep 15 19:43:38 j61 dovecot: pop3(charlie@casaamor.ph)<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=charlie@casaamor.ph, method=PLAIN, rip=49.144.166.64, lip=89.47.162.157, mpid=17743, TLS, session=
Sep 15 19:43:43 j61 dovecot: pop3(charlie@casaamor.ph)<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

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.

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=info@casaamor.ph, method=PLAIN, rip=49.144.174.148, lip=89.47.162.157, mpid=18554, TLS, session=
Sep 19 13:22:21 localhost dovecot: imap(info@casaamor.ph)<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=20190919102226.EF82FE3B94@casaamor.ph
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=root@casaamor.ph, size=20605, nrcpt=1 (queue active)
Sep 19 13:22:27 localhost postfix/pipe[18577]: EF82FE3B94: to=root@casaamor.ph, 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(root@casaamor.ph): Error: net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied )
Sep 19 13:22:27 localhost postfix/cleanup[18570]: 139D4E3B95: message-id=20190919102227.139D4E3B95@casaamor.ph
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=root@casaamor.ph, relay=dovecot, delay=0.03, delays=0/0/0/0.02, dsn=5.1.1, status=bounced (user unknown. Command output: lda(root@casaamor.ph): 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

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=mymaileadress@gmail.com, size=2983, nrcpt=1 (queue active)
Sep 19 13:55:51 cibilbndi postfix/qmgr[1562]: warning: connect to transport private/spamassassin: Connection refused

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=info@casaamor.ph, 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(info@casaamor.ph)<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=info@casaamor.ph, 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(info@casaamor.ph)<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

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.

Hi Cibi,

I use that command but still cannot receive email. Here are the error logs
Sep 20 03:29:58 localhost dovecot: imap(info@casaamor.ph)<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(info@casaamor.ph)<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 Postfix Backwards-Compatibility Safety Net 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 Postfix Backwards-Compatibility Safety Net 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=info@casaamor.ph, 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=info@casaamor.ph, 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=info@casaamor.ph, 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(info@casaamor.ph)<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