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Thursday, April 8, 2021

Office365 as SMTP

 How to configure Office365 as SMTP

You need to note that the from address and the authentication user should be same.

Port to be used is 25 (not 587)

sendmail sending email slow

 sendmail sending email slow

I have a linux box, which I configured sendmail and it is working fine. But the sending email is slow.

While checking the /var/log/maillogs I saw the following 

My unqualified host name (hostname) unknown; sleeping for retry

Sendmail is expecting a FQDN to start cleanly.

You need to set the hostname like <your_hostname>.localdomain and update /etc/hosts.

/etc/hosts   your_hostname.localdomain your_hostname localhost

Wednesday, March 31, 2021

Application Express Limitations in APEX Service

  • Application authentication schemes not supported : LDAP, SSO, HTTP Header variable etc.
  • OCI Web Application Firewall (WAF) service is not natively supported.
  • Deployment of customer managed Oracle REST Data Services is not supported.
  • Custom domain names are not natively supported.
  • Oracle APEX runtime environment is not supported.
  • Option to make a Service Request in Workspace Administration is DISABLED.
  • Option to set SMTP parameters by using the APEX_INSTANCE_ADMIN package only.
  • Limited support of procedures and functions for APEX_INSTANCE_ADMIN
  • Disabled REST Administration interface, Workspace Purge Settings etc.

How to install JDK on linux

 Login to the server


rpm -ivh jdk-8u121-linux-x64.rpm

java -version

vi /etc/profile.d/





export CLASSPATH=.

chmod +x /etc/profile.d/

source /etc/profile.d/

java -version