Email mail function hangs - no more emails from system

Hi,

Had a big problem with a DO Droplet and had a snapshot of it. I was unable to shut or start the Droplet, it kept in a LOOP. Support of DO did after 3 days a forced stop, but in the meantime, I created a new Droplet from a snapshot that I made just before the event and did some great improvements on that one that I don't want to lose these.

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The only issue I have now is that the mail function stopped working. I don't know if this has to do with the old setting of CSF but when I call mail it just hangs there and does nothing.

Also, the Securi Security firewall does not send any notifications, nor any event that happens on WordPress(*ADDED 25/04 RESOLVED WP ISSUE). Cronjobs with -s mymail@domain don't work anymore..
Any advice/help is highly appreciated.

 

Nice of them to add S10 Credit, but noticed that the IP of the new Droplet is Blacklisted as SPAM. Will try a other IP to see if the problem remains.

 

Well, First to know. I changed only the DNS for the new server4 to the correct IP, for the rest I kept the DNS intact, removed the old one of course.

Code (Text):

00 */8 * * * /usr/local/sbin/update-ngxblocker -c /usr/local/nginx/conf/ultimate-badbot-blocker -b /usr/local/nginx/conf/ultimate-badbot-blocker/bots.d -e pirvate@private.com

Well, the above doesn`t work anymore.
Postfix is active, already checked it. But you asked the result so posting it.

Code (Text):

[23:09][root@server4 etc]# service postfix status
Redirecting to /bin/systemctl status postfix.service
● postfix.service - Postfix Mail Transport Agent
   Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2019-04-25 18:59:25 UTC; 4h 9min ago
  Process: 14176 ExecStop=/usr/sbin/postfix stop (code=exited, status=0/SUCCESS)
  Process: 14193 ExecStart=/usr/sbin/postfix start (code=exited, status=0/SUCCESS)
  Process: 14192 ExecStartPre=/usr/libexec/postfix/chroot-update (code=exited, status=0/SUCCESS)
  Process: 14186 ExecStartPre=/usr/libexec/postfix/aliasesdb (code=exited, status=0/SUCCESS)
 Main PID: 14265 (master)
   CGroup: /system.slice/postfix.service
           ├─14265 /usr/libexec/postfix/master -w
           ├─14267 qmgr -l -t unix -u
           ├─14275 tlsmgr -l -t unix -u
           └─19789 pickup -l -t unix -u

Apr 25 21:00:03 server4 postfix/cleanup[17848]: E98EF20147F4: message-id=<20190425210003.E98EF20147F4@server4>
Apr 25 21:00:03 server4 postfix/qmgr[14267]: E98EF20147F4: from=<root@server4>, size=1308, nrcpt=1 (queue active)
Apr 25 21:00:03 server4 postfix/local[17851]: E98EF20147F4: to=<root@server4>, orig_to=<root>, relay=local, delay=2.6, delays=2....o mailbox)
Apr 25 21:00:03 server4 postfix/qmgr[14267]: E98EF20147F4: removed
Apr 25 22:57:27 server4 postfix/pickup[19789]: 5C2E920147F4: uid=0 from=<root>
Apr 25 22:57:27 server4 postfix/cleanup[20796]: 5C2E920147F4: message-id=<20190425225727.5C2E920147F4@server4>
Apr 25 22:57:27 server4 postfix/qmgr[14267]: 5C2E920147F4: from=<root@server4>, size=494, nrcpt=1 (queue active)
Apr 25 22:57:28 server4 postfix/smtp[20798]: Trusted TLS connection established to mx.zoho.com[204.141.42.121]:25: TLSv1.2 with cipher ECDHE-RSA-AES256-SH.../256 bits)
Apr 25 22:57:29 server4 postfix/smtp[20798]: 5C2E920147F4: to=<private@private.com.br>, relay=mx.zoho.com[204.141.42.121]:25, delay=2.4, delays=0.02/0.01/1.4/... received)
Apr 25 22:57:29 server4 postfix/qmgr[14267]: 5C2E920147F4: removed
Hint: Some lines were ellipsized, use -l to show in full.

And Cronjob

Code (Text):

[23:09][root@server4 etc]# service crond status
Redirecting to /bin/systemctl status crond.service
● crond.service - Command Scheduler
   Loaded: loaded (/usr/lib/systemd/system/crond.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2019-04-24 20:11:56 UTC; 1 day 3h ago
 Main PID: 3946 (crond)
   CGroup: /system.slice/crond.service
           └─3946 /usr/sbin/crond -n

Apr 24 20:11:56 server4 systemd[1]: Started Command Scheduler.
Apr 24 20:11:56 server4 crond[3946]: (CRON) INFO (RANDOM_DELAY will be scaled with factor 27% if used.)
Apr 24 20:11:56 server4 crond[3946]: (CRON) INFO (running with inotify support)

As told before that the system was in a startup loop, everything was oke, no problem at all.

Even the snapshot that I made to rebuild the Droplet was 100% , everything was working when I made the snapshot. (With Droplet turned off as advices to keep data integrity).

Only some things were missing in the new droplet, that added I again like the ~bashrc to get a mail when there is a login to the system.

 

Well just noticed that my email goes to SPAM folder
Started a new Droplet to make sure that I have another IP

Code (Text):

echo "mail-test" | mail -s "mail-tester" private@private.com.br