Email 8.5 out of 10 on mail-tester.com but cannot send to gmail addresses.

1. Please fill in any relevant information that applies to you:

• CentOS Version: i.e. CentOS 6 32bit or 64bit / CentOS 7 64bit ?
• Centmin Mod Version Installed: i.e. 123.08stable or 123.09beta01
• Nginx Version Installed: i.e. 1.15.3
• PHP Version Installed: i.e. 5.6.37, 7.0.31, 7.1.21, 7.2.9
• MariaDB MySQL Version Installed: i.e. 10.0.x or 10.1.xx or 10.2.xx
• When was last time updated Centmin Mod code base ? : i.e. run centmin.sh menu option 23 submenu option 2 or cmupdate command
• Persistent Config: Do you have any persistent config file options set in /etc/centminmod/custom_config.inc ? You can check via this command:
  
  Code (Text):

  cat /etc/centminmod/custom_config.inc
  

  
  Post output in CODE tags.

Centos 7.9 - beta 09 branch
latest versions of everything nginx 1.21.5 / php 7.4.6

---

sent a test email to mail-tester.com, got a 8.5 rating.

I cannot send email to GMAIL servers however. I can only send email to Yahoo successfully,

Jan 13 22:27:51 server sendmail[17337]: STARTTLS=client, relay=gmail-smtp-in.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-ECDSA-AES128-GCM-SHA256, bits=128/128
Jan 13 22:27:51 server sendmail[17337]: 20DMRo5R017335: to=<test@hou-re.com>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=124532, relay=gmail-smtp-in.l.google.com. [142.250.138.27], dsn=5.0.0, stat=Service unavailable
Jan 13 22:27:51 server sendmail[17337]: 20DMRo5R017335: 20DMRp5R017337: DSN: Service unavailable
Jan 13 22:27:52 server sendmail[17337]: STARTTLS=client, relay=mta6.am0.yahoodns.net., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-AES128-GCM-SHA256, bits=128/128
Jan 13 22:27:52 server sendmail[17337]: 20DMRp5R017337: to=<nemagx@yahoo.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=35788, relay=mta6.am0.yahoodns.net. [67.195.228.106], dsn=2.0.0, stat=Sent (ok dirdel)


What am I doing wrong?

 

Thank you, How do I setup certificates? What certificates exactly? I'm using Sendmail on centmin beta 09 branch (fully updated)

I DID setup dkim, but it wasn't working properly for whatever reason, so I disabled it (removed it from sendmail.mc and recomplied) to test if the emails would go through to gmail, they still go through to yahoo and 8.5 mail score unchanged.. I also do have a DMARC records in my .zone file, however mail-tester.com always says I do not have a dmarc record, which is frustrating and I do not understand.

 

you don't mean SSL certificates by certificates? I do have OPENSSL certificates generated, but i wasn't aware sendmail used SSL protocols?

 

I'm still majorly struggling. yahoo is refusing my emails as well now and I didn't change anything.

(echo Subject: test; echo; echo test)|/usr/sbin/sendmail -Am -i -v myemail@yahoo.com ... Connecting to mta7.am0.yahoodns.net. via esmtp...
220 mtaproxy402.free.mail.gq1.yahoo.com ESMTP ready
>>> EHLO server.anonymousprivacy.com
250-mtaproxy402.free.mail.gq1.yahoo.com
250-PIPELINING
250-SIZE 41943040
250-8BITMIME
250 STARTTLS
>>> STARTTLS
220 Ready for TLS
>>> EHLO server.anonymousprivacy.com
250-mtaproxy402.free.mail.gq1.yahoo.com
250-PIPELINING
250-SIZE 41943040
250-8BITMIME
250 OK
>>> MAIL From:<root@server.anonymousprivacy.com> SIZE=20
553 5.7.2 [TSS09] All messages from 76.247.108.69 will be permanently deferred; Retrying will NOT succeed. See Yahoo Error Codes
root... Connecting to local...
root... Sent
Closing connection to mta7.am0.yahoodns.net.
>>> QUIT




(echo Subject: test; echo; echo test)|/usr/sbin/sendmail -Am -i -v myemail@gmail.com... Connecting to gmail-smtp-in.l.google.com. via esmtp...
220 mx.google.com ESMTP a2si2405505otv.243 - gsmtp
>>> EHLO server.anonymousprivacy.com
250-mx.google.com at your service, [76.247.108.69]
250-SIZE 157286400
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
>>> STARTTLS
220 2.0.0 Ready to start TLS
>>> EHLO server.anonymousprivacy.com
250-mx.google.com at your service, [76.247.108.69]
250-SIZE 157286400
250-8BITMIME
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
>>> MAIL From:<root@server.anonymousprivacy.com> SIZE=20
250 2.1.0 OK a2si2405505otv.243 - gsmtp
>>> RCPT To:<nghalamdanchi@gmail.com>
>>> DATA
250 2.1.5 OK a2si2405505otv.243 - gsmtp
354 Go ahead a2si2405505otv.243 - gsmtp
>>> .
550-5.7.1 [76.247.108.69] The IP you're using to send mail is not authorized to
550-5.7.1 send email directly to our servers. Please use the SMTP relay at your
550-5.7.1 service provider instead. Learn more at
550 5.7.1 'The IP you're using to send email is not authorized...' - Gmail Help a2si2405505otv.243 - gsmtp
root... Connecting to local...
root... Sent
Closing connection to gmail-smtp-in.l.google.com.
>>> QUIT