If you've separate inbound and outbound servers, you may try putting regex that matches your domain in header_checks for the header 'From:', in your inbound server.

--
Samuel Johnson

On 5/28/19 5:58 PM, an...@ursc.gov.in wrote:
We have implemented SPF check but not DMARC.  It is passing SPF check also.

regards,
anant.


----- Message from Michael <mich...@lists.authresults.com <mailto:mich...@lists.authresults.com>> ---------
    Date: Tue, 28 May 2019 07:10:50 -0500
   From: Michael <mich...@lists.authresults.com <mailto:mich...@lists.authresults.com>> Subject: Re: How to reject mails where from address and to address is myself.
      To: postfix-users@postfix.org <mailto:postfix-users@postfix.org>

Your email filter should be able to quarantine or discard any email that fails the SPF check.

If you want to take it further, you can add a DMARC record after ensuring that your SPF and DKIM are working properly. Again, your filter will need to correctly handle any email that fails DMARC.

Can you post the headers of one of the emails?



On 2019-05-28 6:19 am, an...@ursc.gov.in <mailto:an...@ursc.gov.in> wrote:

Dear List,

Lot of SPAM mails are being received where from and to address is
myself and the mail has contents which are dirty/bad.

The original sender id will be different.

How to handle such mails.

--
Anant S Athavale
------------------------------------------------------------------------------
IMPORTANT NOTE:

ISRO Satellite Centre (ISAC) was renamed as U R Rao Satellite Centre (URSC). Hence, the existing domain (isac.gov.in) is changed to new domain ursc.gov.in resulting into change of e-mail address from u...@isac.gov.in <mailto:u...@isac.gov.in> to
u...@ursc.gov.in <mailto:u...@ursc.gov.in>.
Please note this change and update your contact details for new domain
(ursc.gov.in).
------------------------------------------------------------------------------
Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and
privileged information. Any unauthorized review, use, disclosure or
distribution is prohibited. If you are not the intended recipient, please
contact the sender by reply e-mail and destroy all copies of the original
message.------------------------------------------------------------------------------




----- End message from Michael <mich...@lists.authresults.com <mailto:mich...@lists.authresults.com>> -----
Anant S Athavale


------------------------------------------------------------------------

*IMPORTANT NOTE:*
ISRO Satellite Centre (*ISAC*) was renamed as U R Rao Satellite Centre (*URSC*). Hence, the existing domain (*isac.gov.in*) is changed to new domain *ursc.gov.in* resulting into change of e-mail address from *u...@isac.gov.in* to *u...@ursc.gov.in*. Please note this change and update your contact details for new domain (*ursc.gov.in*).

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गोपनीयता सूचनाःयह ई मेल अपने संलग्न दस्तावेजों के साथ केवल अभीष्ट प्राप्तकर्ता (ओं) के उपयोग के लिए है । इस ई मेल में गोपनीय और विशेषाधिकृत सूचनायें भी हो सकती हैं । इनका अनाधिकृत पुनरीक्षण, उपयोग अथवा वितरण निषिद्ध है । यदि आप अभीष्ट प्राप्तकर्ता नहीं हैं तो, कृपया प्रेषक से संपर्क करें और ई मेल की सभी प्रतियों को नष्ट कर दें।

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Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

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