Sendgrid SMTP Relay Configuration Using Postfix in SAP S/4HANA
In this blog post I have explained about how to use / configure Sendgrid as SMTP relay in SAP S/4HANA using postfix mail package in Redhat linux.
Environment Details :
Linux Version : Red Hat Enterprise Linux Server 7.6
SAP S/4HANA 1909 FPS 00
HANA 2.0 SP04
Install Postfix in Redhat Linux
Check Postfix is installed
# rpm -qa | grep postfix
# yum install -y postfix
# systemctl start postfix
# systemctl enable postfix
# systemctl status postfix
Postfix status should be active (running)
Steps to be carried in Linux server:
Take backup of below files from /etc/postfix
- sasl_passwd (If already available)
# cd etc/postfix
# cp main.cf main_bkp.cf
# cp sasl_passwd sasl_passwd_bkp
Add below lines in main.cf file
# cd etc/postfix
# vi main.cf
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_sasl_tls_security_options = noanonymous
smtp_tls_security_level = encrypt
header_size_limit = 4096000
relayhost = [smtp.sendgrid.net]:587
— Save —
Note: You should have sendgrid account details to proceed further.
# vi sasl_passwd
Note: Sendgrid login account details is username & password.
# sudo chmod 600 /etc/postfix/sasl_passwd
# sudo postmap /etc/postfix/sasl_passwd
# sudo systemctl restart postfix
Check postfix status,
# sudo systemctl status postfix
Test Using Unix Command:
# vi /tmp/test.txt
— Type any content in the text file —
SMTP Mail Configuration Using Sendgrid Completed Successfully !
— Save —
mail -s “Sendgrid Configuration Mail” firstname.lastname@example.org < /tmp/test.txt
You should receive mail as below,
You can also test send mail using telnet command.
SMTP Configuration in SAP:
- Create SMTP_USER (Service User) in all working clients with
Profiles: SAP_ALL & S_A.SCON
2. Create JOBUSER (Service User) in all working clients with (optional step)
Profile : SAP_ALL
SCOT Configurations: (In all working clients)
Setting -> Default Domain
If the default domain is SAP.COM and the user name TESTUSER, the mail address would be TESTUSER@SAP.COM. Accordingly decide what is your default domain.
2. Create SMTP Node
Click on “Node in use” -> Save
3. Click on Settings “SMTP Configuration”
Type Sendgrid Login details: (Username & Password)
4.Click on Set “Internet”
Once Saved, we should see SCOT screen as below,
5. Click on Settings on left pane, modify as below screenshot
6. Click on Settings “Inbound Messages”, modify as below
7. To Create Background Job to Trigger mail once in 10 Minutes (All Clients)
JobName : Z_SAPCONNECT_<Client> (Any job name)
Background User : JOBUSER
Release the job.
8. T-Code : SICF
Double click on SAPCONNECT
11. Activate the SAPCONNECT Service from SICF T-Code, right click on the service & activate.
How to Test?
T-Code : SCOT
Check in SOST (After 10 Minutes), Once the Z_SAP_CONNECT_100 job completes status should turn from waiting to sent
I hope above blog post is useful and I have described best to my knowledge on how to configure Sendgrid as SMTP relay service in SAP S/4HANA.
Comments & Suggestions are always welcome 🙂
Keep Supporting !