Messages

1

E-Mail / Port 25 closed for outgoing emails

« on: July 27, 2024, 04:44:06 AM »

Hi and thanks for letting me post here

I have an issue with my 2 servers using Alma Linux, just today they starting to face this problem at the same time, and I dont know if it was because an update or any other change that I could see, port 25 is closed just for outgoing emails, and I verify if is closed with my ISP but is not, they confirmed that is open for in and outgoing service.

I did a telnet to smtp-mail.outlook.com and smtp.gmail.com to port 25 and can connect with any problems but if i do a telnet to any other server it cannot connect.

I checked the firewall and iptables and the port 25 is open, I can recibe emails but not send and I get this bounce email:

Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.25 [2602:ff16:12:0:1:17e:0:1] The IP address
sending this message does 550-5.7.25 not have a PTR record setup, or the
corresponding forward DNS entry 550-5.7.25 does not match the sending IP.
As a policy, Gmail does not accept 550-5.7.25 messages from IPs with
missing PTR records. For more information, go 550-5.7.25 to 550-5.7.25
https://support.google.com/a?p=sender-guidelines-ip 550-5.7.25 To learn
more about Gmail requirements for bulk senders, visit 550 5.7.25
https://support.google.com/a?p=sender-guidelines.
6a1803df08f44-6bb3fb1da25si54344036d6.586 - gsmtp

I get a lot of this type of logs in mail log

Jul 26 22:28:20 vps3 postfix/smtp[54894]: connect to outlook-com.olc.protection.outlook.com[52.101.73.20]:25: Connection timed out
Jul 26 22:28:20 vps3 postfix/smtp[54892]: B824DA0FF3: to=, relay=none, delay=19788, delays=19668/0.06/120/0, dsn=4.4.1, status=deferred (connect to usb-smtp-inbound-2.mimecast.com[170.10.150.242]:25: Connection timed out)
Jul 26 22:28:20 vps3 postfix/smtp[54894]: 29AE4A0FEA: to=, relay=none, delay=20018, delays=19897/0.03/120/0, dsn=4.4.1, status=deferred (connect to outlook-com.olc.protection.outlook.com[52.101.73.20]:25: Connection timed out)
Jul 26 22:28:20 vps3 postfix/smtp[54892]: B824DA0FF3: to=, relay=none, delay=19788, delays=19668/0.06/120/0, dsn=4.4.1, status=deferred (connect to usb-smtp-inbound-2.mimecast.com[170.10.150.242]:25: Connection timed out)
Jul 26 22:28:34 vps3 postfix/smtpd[55282]: connect from localhost[127.0.0.1]
Jul 26 22:28:34 vps3 postfix/smtpd[55282]: disconnect from localhost[127.0.0.1] ehlo=1 quit=1 commands=2

I tried to do all I could but no success.

2

Updates / Re: Update: File Manager when edit a file, dont show header where logo cwp is

« on: November 26, 2020, 07:38:12 PM »

Just want to go thru some questions I did before and this problem was solved immediately once I updated the CWP

3

E-Mail / SASL PLAIN authentication failed

« on: November 26, 2020, 07:33:36 PM »

Hey guys I hope you can give me a hand on this because I don't know what to do.

I constantly get this type of messages log, I know that it means that I could not get authentication and it failed to log in in the email, but I know the IP, is from a client of mine, and It seems like one of his computers can't log in correctly and is trying to log in and it generates this log. I personally went to his company and checked all his computers and every single computer is working correctly on the emails.

What I do is, I whitelist his IP to prevent IP blocking but the problem is that when his IP changes than they need to call me to unblock it. Please can someone suggest a solution, probably there's one device that is logged in incorrectly but it could be a phone and it's really hard to keep track of every device in his company.

Here is the log.

Nov 26 12:21:04 vps postfix/smtpd[18783]: warning: unknown[x.x.x.x]: SASL PLAIN authentication failed:
Nov 26 12:21:10 vps postfix/smtpd[18783]: warning: unknown[x.x.x.x]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Nov 26 12:21:16 vps postfix/smtpd[18783]: warning: unknown[x.x.x.x]: SASL PLAIN authentication failed: UGFzc3dvcmQ6
Nov 26 12:21:23 vps postfix/smtpd[18783]: warning: unknown[x.x.x.x]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Nov 26 12:21:25 vps postfix/smtpd[18783]: warning: unknown[x.x.x.x]: SASL PLAIN authentication failed:

Please I need help on this.

4

MySQL / Re: Backups dont include mysql

« on: September 29, 2020, 04:26:53 PM »

Its now solved

https://forum.centos-webpanel.com/index.php?topic=7034.0

Do you have [mysqld] along with local-infile=0? It should look like the following in your etc/my.cnf file:

[mysqld]
local-infile=0

I added this line into the file that says on this link and solved

5

Updates / Update: File Manager when edit a file, dont show header where logo cwp is

« on: September 29, 2020, 04:21:35 PM »

Hi good morning

My CWP just updated, what I notice is that the file manager now looks way better than before and everything works fine, I can see the whole file manager as it is, but when im trying to open up a file to edit it, the header where the CWP is and the path where the file is and also the save botton is, it dissapears.

As soon as I open the file I can see the header right away and within a few seconds it hides behind, if I open the inspector, all the componentes are there but it seems like they were behind the accual file.

Please I need help to fix this.
Thanks a lot.

6

Information / Re: is it normal for memory with cache to always be high

« on: September 10, 2020, 05:12:23 AM »

Hi, I have the same issue, have you ever gotten any solutions???

7

MySQL / Backups dont include mysql

« on: September 04, 2020, 05:16:19 AM »

Hey guys good night, I really hope you guys can help me out with this.

Everytime I do a backup or one of those full back ups, for some reason it wont include all mysql's, will you know whats up with my panel, even if I checked the box to include it, and I do have, are wordpress websites and all of the have mysql.

When I decompress the file and check all folders, the only .sql that I can see under the folder mysql is user_grants.sql

Please I really need help on this.

thanks in advance.