[exim] How do I disable double at sign in message-ID?

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Author: Imri Paloja || De Hosting Makelaar
Date:  
To: exim-users@exim.org
Subject: [exim] How do I disable double at sign in message-ID?
Hello,

This is my first time subscribing to a mailing list, here goes nothing:


How do I disable double at sign in message-ID?

because of the double at, my e-mails are entering recipients spam folder:

> 01d01d2d093$7154f9d0$53feed70$@USER@???


in the log, I see the above message header, and the mail-tester.com, notes this issue

> "Message-ID contains multiple '@' characters"


Any idea how I can disable the doube at sign in exim??

---

Detailed log output:

> USER@??? <USER@???> F=<user.lastname@???> R=lookuphost T=remote_smtp S=16179 H=OFFICE365domain-COM.mail.protection.outlook.com [213.199.180.170] X=TLSv1.2:ECDHE-RSA-AES256-SHA384:256 C="250 2.6.0 <001d01d2d093$7154f9d0$53feed70$ **@** USER **@** domain.tld> [InternalId=2070174243006, Hostname=VI1PR0601MB2605.eurprd06.prod.outlook.com] 23799 bytes in 0.280, 82.980 KB/sec Queued mail for delivery"



The Spam Assassin rule:
https://wiki.apache.org/spamassassin/Rules/MSGID_MULTIPLE_AT



With Kind regards,

Imri Paloja

De Hosting Makelaar
Industrieweg 15
3641 RK Mijdrecht

T: 0297-74 51 60
E: imri@???<mailto:imri@dehostingmakelaar.nl>