Postfix: Block sender: Difference between revisions

From OnnoCenterWiki
Jump to navigationJump to search
Onnowpurbo (talk | contribs)
69,477 edits
Onnowpurbo (talk | contribs)
69,477 edits
New page: Sumber: http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/ Q. I’ve Postfix based CentOS Linux server. I need to blacklist email ID: user@abadboy.com . How d...
 
Onnowpurbo (talk | contribs)
69,477 edits
No edit summary
 
Line 1: Line 1:
Sumber: http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/
Sumber: http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/


cd /etc/postfix
vi sender_access


Q. I’ve Postfix based CentOS Linux server. I need to blacklist email ID: user@abadboy.com . How do I blacklist email address with postfix? I also have spamassassin software installed.
Masukan address yang ingin di block


A. By default, the Postfix SMTP server accepts any sender address. However you can block / blacklist sender email address easily with Postfix. It has SMTP server access table.
user@abadboy.com        REJECT
myfriend@example.com    OK
junk@spam.com          REJECT
marketing@              REJECT
theboss@                OK
deals.marketing.com    REJECT
somedomain.com          OK


Open /etc/postfix/sender_access file
Save & close file. Lakukan postmap untuk membuat database
# cd /etc/postfix
 
# vi sender_access
postmap hash:sender_access
Append sender email id as follows:
 
user@abadboy.com REJECT
Edit main.cf & tambagkan
Save and close the file. Use postmap command to create a database:
 
# postmap hash:sender_access
smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/sender_access
Now open main.cf and add code as follows:
 
smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/sender_access
restart postfix
Save and close the file. Restart / reload postfix MTA:
 
# /etc/init.d/postfix restart
/etc/init.d/postfix restart


You can also use spamassassin to blacklist email address. Just add to your own spamassassin configuration or to /etc/mail/spamassassin/local.cf file:
You can also use spamassassin to blacklist email address. Just add to your own spamassassin configuration or to /etc/mail/spamassassin/local.cf file:
# vi /etc/mail/spamassassin/local.cf
 
vi /etc/mail/spamassassin/local.cf
 
Append blacklist as follows:
Append blacklist as follows:
blacklist_from user@abadboy.com
 
blacklist_from user@abadboy.com
 
Save and close the file. Restart spamassassin:
Save and close the file. Restart spamassassin:
# /etc/init.d/spamassassin restart
 
/etc/init.d/spamassassin restart


spamassassin will marke mail as SPAM instead of rejecting the same.
spamassassin will marke mail as SPAM instead of rejecting the same.

Latest revision as of 22:01, 27 November 2016

Sumber: http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/ 

cd /etc/postfix
vi sender_access

Masukan address yang ingin di block 

user@abadboy.com        REJECT
myfriend@example.com    OK
junk@spam.com           REJECT
marketing@              REJECT
theboss@                OK
deals.marketing.com     REJECT
somedomain.com          OK

Save & close file. Lakukan postmap untuk membuat database 

postmap hash:sender_access

Edit main.cf & tambagkan 

smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/sender_access

restart postfix 

/etc/init.d/postfix restart

You can also use spamassassin to blacklist email address. Just add to your own spamassassin configuration or to /etc/mail/spamassassin/local.cf file: 

vi /etc/mail/spamassassin/local.cf

Append blacklist as follows: 

blacklist_from user@abadboy.com

Save and close the file. Restart spamassassin: 

/etc/init.d/spamassassin restart

spamassassin will marke mail as SPAM instead of rejecting the same.



Referensi

Retrieved from "https://lms.onnocenter.or.id/wiki/index.php?title=Postfix:_Block_sender&oldid=46488"