[resolved] have trouble with email sending (SMTP)

abtech

i have just configure a fresh OSTicket on a fresh centos 7, but i have trouble with email sending.
whatever i set, mail sending still don't work.
Here are all the settings I could try, and their corresponding error results：
(please see it in attachment)

result.pdf

112kB

here are my steps in centos:

stop and disabled firewall
install LAMP:
- yum -y install wget screen git
- git clone https://github.com/teddysun/lamp.git
- cd lamp
- chmod 755 *.sh
- screen -S lamp
- ./lamp.sh
  - choose httpd-2.4.41, mariadb-5.5.66, php-7.2.25 and all extension of the three compoments
yum install zip unzip php-mysql php-gd php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-snmp php-mcrypt php-apcu
download OSTicket and configure apache, mysql
in OSTicket webpage ,complete installation.

Is there any issue in my steps? should I configure mail settings in centos, or php?
I am a totally beginner in Linux and web server 🙁

abtech

upstairs is my test result.
and i want to know, how to create a ticket via e-mail rather than webpage?
and, why my osticket time is 14 hour later than my centos?

abtech

abtech how to create a ticket via e-mail rather than web page?

i know that. just send mail to Default System Email
and that can prove that my imap function works fine.

abtech

can anybody help me? thanks a lot!

ramrajone

Have you checked the documents

https://docs.osticket.com/en/latest/

abtech

ramrajone
thank you, but it don't work. i checked the document https://docs.osticket.com/en/latest/Getting%20Started/Email%20Settings.html and tried testing my mail server by telnet, and it said i connected successfully.

ramrajone

abtech
Not sure why, Google it here is one link https://mangolassi.it/topic/11624/installing-osticket-1-10-on-centos-7

Here is another link it's for osTickets on Ubuntu
https://howtohelpdesk.com/category/support-system/osticket/

abtech

ramrajone thanks but, it don't work either. I fixed it by this: https://forum.osticket.com/d/95693-osticket-1-12-2-smtp-problem-smtp-starttls-failed