so i have this problem where i can send mail perfectly fine but cant recive any (port 25 unlocked) I'm using Ubuntu 18.04.5. @aaPanel_Jose please help me Logs" Nov 10 23:06:03 vmi451560 postfix/smtpd[21724]: connect from mail-yb1-f175.google.com[209.85.219.175] Nov 10 23:06:03 vmi451560 postfix/smtpd[21677]: warning: unknown[45.142.120.147]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Nov 10 23:06:03 vmi451560 postfix/smtpd[21724]: lost connection after STARTTLS from mail-yb1-f175.google.com[209.85.219.175] Nov 10 23:06:03 vmi451560 postfix/cleanup[23197]: 68A903A22EC: message-id=<20201110220603.68A903A22EC@vmi451560.contaboserver.net> Nov 10 23:06:03 vmi451560 postfix/smtpd[21724]: disconnect from mail-yb1-f175.google.com[209.85.219.175] ehlo=1 starttls=0/1 commands=1/2 Nov 10 23:06:03 vmi451560 postfix/qmgr[16845]: 68A903A22EC: from=<double-bounce@vmi451560.contaboserver.net>, size=1022, nrcpt=1 (queue active) Nov 10 23:06:03 vmi451560 postfix/smtp[23199]: 68A903A22EC: to=<postmaster@vmi451560.contaboserver.net>, orig_to=<postmaster>, relay=none, delay=0.05, delays=0.03/0.02/0/0, dsn=5.4.6, status=bounced (mail for vmi451560.contaboserver.net loops back to myself) Nov 10 23:06:03 vmi451560 postfix/bounce[23200]: warning: 68A903A22EC: undeliverable postmaster notification discarded Nov 10 23:06:03 vmi451560 postfix/qmgr[16845]: 68A903A22EC: removed

skorupion Please try to enable the email domain SSL on the mail server

Thanks very much a little tutorial if someone doesn't know how to do this: Go into your domain and set up SSL via Let's encrypt (if you don't have a certificate). Copy your private key. Then go into your mail server and go into Domain List, click add SSL ( i would recommend having 2 tabs open: 1 with your certificate and one with your mail server). Paste your private key, then from the other tab copy the public key, and paste it in too. Then click save and you should be able to receive emails.

mail server would work with cloud flare ssl or not?

aaPanel_Jose ! I hv the same issue here,and i tried your suggestion above but still emails are not sent

aaP_pcdrips At the same time, check the postfix configuration, which can be viewed in the server status "mail.135mailtest.com" is replaced with your domain name Put: smtpd_tls_chain_files=/etc/ssl/private/ssl-cert-snakeoil.key,/etc/ssl/certs/ssl-cert-snakeoil.pem Change to: smtpd_tls_chain_files = /www/server/panel/plugin/mail_sys/cert/135mailtest.com/privkey.pem,/www/server/panel/plugin/mail_sys/cert/135mailtest.com/fullchain.pem Note to replace 135mailtest.com with your domain name. Also check /www/server/panel/plugin/mail_sys/cert/135mailtest.com/ for privkey.pem and fullchain.pem files You can use this command to check whether the correct SSL is configured openssl s_client -connect mail.135mailtest.com:587 -starttls smtp or openssl s_client -connect mail.135mailtest.com:465 -starttls smtp If the display is not OK, please re-apply for SSL Unable to send dkim headers Troubleshoot log /var/log/rspamd/rspamd.log Prompt for permission issues: 2022-04-20 00:27:56 #1363(rspamd_proxy) <6795e9>; proxy; dkim_module_load_key_format: cannot load dkim key /www/server/dkim/xx.com/default.private: cannot map key file: '/www /server/dkim/xx.com/default.private' Permission denied Set 640 to 644, then restart rspamd to send emails to view the email source code, please replace xxx.com with your domain name. chmod 644 /www/server/dkim/xx.com/default.private systemctl restart rspamd Use this website to check whether the records of DKIM and SPF are correct? https://www.dmarcanalyzer.com/dkim/dkim-checker/ https://dnschecker.org/spf-record-validation.php Check the mail score and troubleshoot according to its error message https://www.mail-tester.com/ Check blacklists https://mxtoolbox.com/

aaPanel_Kern I dont see tht file smtpd_tls_chain_files=/etc/ssl/private/ssl-cert-snakeoil.key,/etc/ssl/certs/ssl-cert-snakeoil.pem

aaP_pcdrips Postfix config in the Service Status of the mail server

aaPanel_Kern My hostnme is my.mdandu.com what if i change default nvmeserver above to my.mdandu.com? as you hav seen in above where i need to verify contaboserver which is impossible because i dont own that domain but its a defult subdomain after i bought server.

Mail server cant recive emails

aaP_pcdrips

aaPanel_Kern

Whats wrong from this latest log

aaPanel_Kern

Just set up a domain name that you own. The latest did not see any problems

aaP_pcdrips

aaPanel_Kern now emais are sent after changing hostme but goes to spam box.any suggestion?

aaP_pcdrips

aaPanel_Kern

Check the mail score and troubleshoot according to its error message
https://www.mail-tester.com/

aaP_pcdrips

aaPanel_Kern

Another problem,please help me/Instruct me how i can solve this?

https://i.imgur.com/ILS4B3u.png

aaPanel_Kern

aaP_pcdrips
Check whether there is a directory or not, create it manually and set the relevant permissions at the same time

ls -al /var/spool/postfix/

mkdir /var/spool/postfix/maildrop chmod 770 /var/spool/postfix/maildrop

At the same time, check whether the hard disk space is normal
df -h && df -i

aaP_pcdrips

aaPanel_Kern

Sorry am not expert on this,you mean i needed to create three folders as you mentioned? Where can i create in in my file manager?

aaPanel_Kern

aaP_pcdrips
Use the ssh tool to log in to the server and execute the above command

aaP_pcdrips

aaPanel_Kern
I still have issue with email.Emails are not sent and this is email log

aaPanel_Kern

aaP_pcdrips
Hello, what information is not sent? The log shows that the login verification failed. It is recommended to check whether the information entered is correct?

aaP_pcdrips

aaPanel_Kern which login verification failed? I mean where do i need to login? I reinstalled aapanel yesterday then i installed mail plugin the only thing i added is password in redis.
So i dont get it whe you talking bout login

aaPanel_Kern

aaP_pcdrips

aaPanel_Kern Then tell me what is it and what am supposed to do ? Am not an expert please guide me.You are only showin me login issue but you dont tell me what is it and where can solve it

aaPanel_Kern

Hello, is there an email address configured from the website?

aaP_pcdrips

aaPanel_Kern No,i have email created from mail plus as user from my domain

aaPanel_Kern

Is it possible to send from the mail server interface?

aaP_pcdrips

aaPanel_Kern NO,Emails fail to be sent.

are thereany functions i need to enable in php which are related with mail?

aaPanel_Kern

In the mail server, "Send mail" fails to send? Take a screenshot to see what information is displayed

aaP_pcdrips

aaPanel_Kern Fails emails go back to my inbox

aaPanel_Kern

aaP_pcdrips
Please check the relevant logs. According to the mail log to check what is the reason for the bounce

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