Wordpress email trouble

hi bobby,

thanks for your reply and suggestions.

but i think otherwise. i guess some bots are using the contact form on one of our client websites to blast them with tons of emails. i think the quick fix is to add a recaptcha in the form. regardless, we will still need to contact the clients for the fix. any idea?

br, tom

@bobbyiliev

hi bobby,

what if we are hosting tens of wordpress sites for our clients on one of our droplets which we cannot log in to and install an wp smtp plugin?

we still need to fix the php mailer issue, dont we?

from the output of “nc -vz smtp.gmail.com 25”, we got “Connection to smtp.gmail.com 25 port [tcp/smtp] succeeded!” which means at least the droplet is able to communicate over the ports required to send emails externally.

from the output of “tail -20 /var/log/mail.log” below, we got some deferred emails sent from some of our clients. will those deferred emails prevent the droplet from sending other emails? any idea?

Dec 1 08:24:26 AzinityServerCPU2 postfix/smtp[22043]: 30067409CB: to=info@kennethchaucpa.com, relay=mail8.internad.hk[202.130.104.18]:25, delay=0.82, delays=0.02/0.01/0.21/0.58, dsn=2.6.0, status=sent (250 2.6.0 1048 bytes received in 00:00:00; Message id 201912011624254622 accepted for delivery) Dec 1 08:24:26 AzinityServerCPU2 postfix/qmgr[1868]: 30067409CB: removed Dec 1 08:26:03 AzinityServerCPU2 postfix/pickup[21887]: C9B23409CB: uid=33 from=<www-data> Dec 1 08:26:03 AzinityServerCPU2 postfix/cleanup[22041]: C9B23409CB: message-id=86584e93c7b362c12461f14b930162b3@www.czdcpa.com Dec 1 08:26:03 AzinityServerCPU2 postfix/qmgr[1868]: C9B23409CB: from=www-data@azinity.com, size=1031, nrcpt=1 (queue active) Dec 1 08:26:24 AzinityServerCPU2 postfix/smtp[22043]: C9B23409CB: to=winnie@czdcpa.com, relay=mail.czdcpa.com[192.186.255.164]:25, delay=21, delays=0.01/0/21/0.19, dsn=5.0.0, status=bounced (host mail.czdcpa.com[192.186.255.164] said: 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1) (in reply to MAIL FROM command)) Dec 1 08:26:24 AzinityServerCPU2 postfix/cleanup[22041]: F09AF409D9: message-id=20191201082624.F09AF409D9@AzinityServerCPU2 Dec 1 08:26:24 AzinityServerCPU2 postfix/qmgr[1868]: F09AF409D9: from=<>, size=2998, nrcpt=1 (queue active) Dec 1 08:26:24 AzinityServerCPU2 postfix/bounce[22049]: C9B23409CB: sender non-delivery notification: F09AF409D9 Dec 1 08:26:24 AzinityServerCPU2 postfix/qmgr[1868]: C9B23409CB: removed Dec 1 08:26:24 AzinityServerCPU2 postfix/local[22050]: F09AF409D9: to=www-data@azinity.com, relay=local, delay=0.01, delays=0/0.01/0/0, dsn=2.0.0, status=sent (delivered to maildir) Dec 1 08:26:24 AzinityServerCPU2 postfix/qmgr[1868]: F09AF409D9: removed Dec 1 08:26:55 AzinityServerCPU2 postfix/qmgr[1868]: 631CA409C8: from=www-data@azinity.com, size=1800, nrcpt=2 (queue active) Dec 1 08:26:55 AzinityServerCPU2 postfix/smtp[22043]: 631CA409C8: host mx-apac.mail.gm0.yahoodns.net[106.10.248.74] said: 421 4.7.0 [TSS04] Messages from 139.59.96.33 temporarily deferred due to user complaints - 4.16.55.1; see https://help.yahoo.com/kb/postmaster/SLN3434.html (in reply to MAIL FROM command) Dec 1 08:26:55 AzinityServerCPU2 postfix/smtp[22043]: 631CA409C8: lost connection with mx-apac.mail.gm0.yahoodns.net[106.10.248.74] while sending RCPT TO Dec 1 08:26:55 AzinityServerCPU2 postfix/smtp[22043]: 631CA409C8: to=billionapex@yahoo.com.hk, relay=mx-apac.mail.gm0.yahoodns.net[106.10.248.73]:25, delay=143389, delays=143389/0/0.03/0.2, dsn=4.7.0, status=deferred (host mx-apac.mail.gm0.yahoodns.net[106.10.248.73] said: 421 4.7.0 [TSS04] Messages from 139.59.96.33 temporarily deferred due to user complaints - 4.16.55.1; see https://help.yahoo.com/kb/postmaster/SLN3434.html (in reply to MAIL FROM command)) Dec 1 08:56:54 AzinityServerCPU2 postfix/qmgr[1868]: 6EFF63F146: from=www-data@azinity.com, size=2413, nrcpt=2 (queue active) Dec 1 08:56:54 AzinityServerCPU2 postfix/smtp[26774]: 6EFF63F146: host mx-apac.mail.gm0.yahoodns.net[106.10.248.74] said: 421 4.7.0 [TSS04] Messages from 139.59.96.33 temporarily deferred due to user complaints - 4.16.55.1; see https://help.yahoo.com/kb/postmaster/SLN3434.html (in reply to MAIL FROM command) Dec 1 08:56:54 AzinityServerCPU2 postfix/smtp[26774]: 6EFF63F146: lost connection with mx-apac.mail.gm0.yahoodns.net[106.10.248.74] while sending RCPT TO Dec 1 08:56:56 AzinityServerCPU2 postfix/smtp[26774]: 6EFF63F146: to=billionapex@yahoo.com.hk, relay=mx-apac.mail.gm0.yahoodns.net[106.10.248.73]:25, delay=214684, delays=214682/0.04/1.6/0, dsn=4.7.0, status=deferred (host mx-apac.mail.gm0.yahoodns.net[106.10.248.73] said: 421 4.7.0 [TSS04] Messages from 139.59.96.33 temporarily deferred due to user complaints - 4.16.55.1; see https://help.yahoo.com/kb/postmaster/SLN3434.html (in reply to MAIL FROM command))

br, tom

@bobbyiliev

Hi, friend

After rebooting there were 52 packages to be updated. I did the upgrade. Then the connection with portquiz was ok. There was no need to trace the route. Then i activated the plugin Post Smpt and the website’s mailing system is normalized.

I thank you guys so much for caring, @Kdimitrov

OMMMMMMMMMMM

How to run a treaceroute?

@bobbyiliev

test negativ.

Ports closed.

To                         Action      From
--                         ------      ----
80,443/tcp (Nginx Full)    ALLOW IN    Anywhere
22                         ALLOW IN    Anywhere
80                         ALLOW IN    Anywhere
80,443/tcp (Nginx Full (v6)) ALLOW IN    Anywhere (v6)
22 (v6)                    ALLOW IN    Anywhere (v6)
80 (v6)                    ALLOW IN    Anywhere (v6)

25                         ALLOW OUT   Anywhere
465                        ALLOW OUT   Anywhere
587                        ALLOW OUT   Anywhere
25 (v6)                    ALLOW OUT   Anywhere (v6)
465 (v6)                   ALLOW OUT   Anywhere (v6)
587 (v6)                   ALLOW OUT   Anywhere (v6)

I am so sorry. :( Thanks for helping.

SMTP	smtp.migadu.com:25	Closed	No	-	-	-	-	-	-
SMTP	smtp.migadu.com:465	Closed	Checking..	-	-	-	-	-	-
SMTP	smtp.migadu.com:587	Closed	Checking..	-	-	-	-	-	-
Mandrill API	mandrillapp.com:443	Open	Checking..	-	n/a
SendGrid API	api.sendgrid.com:443	Checking..	-	-	n/a
Mailgun API	api.mailgun.net:443	Open	Checking.

@bobbyiliev

right… thank you… let’s test the connectivity then

In both ports, 25 and 587, it was not able to connect.

To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere
Nginx Full                 ALLOW       Anywhere
22                         ALLOW       Anywhere
80                         ALLOW       Anywhere
587                        ALLOW       Anywhere
25                         ALLOW       Anywhere
OpenSSH (v6)               ALLOW       Anywhere (v6)
Nginx Full (v6)            ALLOW       Anywhere (v6)
22 (v6)                    ALLOW       Anywhere (v6)
80 (v6)                    ALLOW       Anywhere (v6)
587 (v6)                   ALLOW       Anywhere (v6)
25 (v6)                    ALLOW       Anywhere (v6)

@bobbyiliev

I allowed ports 25 and 587 for smtp via putty, but still the connectivity test is giving me a negative result.

SMTP	smtp.migadu.com:25	Closed	Checking..	-	-	-	-	-	-
SMTP	smtp.migadu.com:465	Closed	No	-	-	-	-	-	-
SMTP	smtp.migadu.com:587	Closed	Checking..