Officer can't send email to members@ or officers@

I am experiencing a similar trouble and I have pasted below the undeliverable message. I turned it into our IT dept and they said we are not on the spamcop list. How can I resolve this.Sent: Tuesday, January 16, 2024 10:45 AM
To: Steve Mathis
Subject: Undeliverable: Meeting Summary  toastmastersclubs.org rejected your message to the following email addresses:This email address is being protected from spambots. You need JavaScript enabled to view it.
Your message couldn't be delivered because it's suspected of being spam. For best practices when sending email, refer to the guidelines found here: go.microsoft.com/fwlink/?LinkID=526654 . toastmastersclubs.org gave this error:
Decision Engine classified the mail item was rejected because of IP Block (from outbound normal IP pools) -> 550 5.7.1 <This email address is being protected from spambots. You need JavaScript enabled to view it.>... Mail from 40.107.236.100 refused because IP is on SpamCop - see spamcop.net/bl.shtml


 Diagnostic information for administrators:Generating server: MW4PR15MB4666.namprd15.prod.outlook.comThis email address is being protected from spambots. You need JavaScript enabled to view it.
toastmastersclubs.org
Remote server returned '550 5.7.514 Decision Engine classified the mail item was rejected because of IP Block (from outbound normal IP pools) -> 550 5.7.1 <This email address is being protected from spambots. You need JavaScript enabled to view it.>... Mail from 40.107.236.100 refused because IP is on SpamCop - see spamcop.net/bl.shtml 'Original message headers:ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=d4fZNaxtR5qmilHEaWt9KeT1MA6B3GAajYKrEAw++ef/4Hk5CCp3TbvSt/pavXx9u30RJOxP548UJGXY3BQrWsh1u4XAS50UBrxkDw131syafuoj18AaDaa9wjtmzNbEou9XW/FIiJ8yf0n80cyF/FkuBgKypRWjO6Pk/p9QtbrqpYMghT5jiGMpy1VBBCkA51CSGqjlsxSImX/+aZO/AFkvZ6GAVs5fXK80SyI0okK0kYzFIVL4d/UvnsqYCgEhBEpHFNjdAjdunNCeCv/lXSrMUI8sdy3IYqNbuAdU8yYrGHo+G3kJrBtlbdrKsgk/VB4WNV5vi7dtsloSHDCYeA==ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=ou0bjC4xL06kMRtAHD0pmbJVPADRVSfleW17C6ZbqSA=; b=I15wGjSsA82MUWEntrolijt4quviKxI4XtZ1Hs3+lH72Q4S2aG/9MlPDXCtrdMvlogUCzUL1ix+7GQSGMVH32oJx/CWVcH3WmvFom/1zTJBjVW1AT3B62HyukL84s/6oKjSp6O2UqlxkbyWlrfawg9VhmjhQFPDmUFc9gy1plFE3EtPvqbk9Egs3jz3i3SGCx8zRIzLow0zRwb8SP9+XFN89KnWvAUI+Ly7Z3wUR3Gs8ydxxNe1sx17jChMej18HW/iM9K8UrMGliQHs4wD585hcgyJOk1wOUJf4eaWJvpfkfNSXKIdIELsvIqzBBh/MJe4PprtmK2fMS8YTCYrBpw==ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom= usdigital.com ; dmarc=pass action=none header.from= usdigital.com ; dkim=pass header.d= usdigital.com ; arc=noneDKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= USDigital365.onmicrosoft.com ; s=selector2-USDigital365-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ou0bjC4xL06kMRtAHD0pmbJVPADRVSfleW17C6ZbqSA=; b=aF6yZgvCDIiT5GtHS9KP3VQ5+1fRdrNuGlrBwsLaV61f5ThRjAEIbTtBia9tnqcFaF7fnCFs2nf9lDPIUHS1kxlFoJY+4F8uAtWCfy87DJ6TN5D6yukkSI7kz16ABPjy7ZDNfVaMU2THg/kI6Sb5CCL7nqv/kASIR34zqfCuGfI=Received: from MW3PR15MB4028.namprd15.prod.outlook.com (2603:10b6:303:40::11) by MW4PR15MB4666.namprd15.prod.outlook.com (2603:10b6:303:10b::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7181.29; Tue, 16 Jan 2024 18:44:46 +0000Received: from MW3PR15MB4028.namprd15.prod.outlook.com ([fe80::8189:bf7:d0ca:9e0]) by MW3PR15MB4028.namprd15.prod.outlook.com ([fe80::8189:bf7:d0ca:9e0%6]) with mapi id 15.20.7181.027; Tue, 16 Jan 2024 18:44:46 +0000From: Steve Mathis <This email address is being protected from spambots. You need JavaScript enabled to view it.>To: "This email address is being protected from spambots. You need JavaScript enabled to view it."        <This email address is being protected from spambots. You need JavaScript enabled to view it.>Subject: Meeting SummaryThread-Topic: Meeting SummaryThread-Index: AdpIqI/7vM9QfX7hRhC5JziryG6plg==Date: Tue, 16 Jan 2024 18:44:46 +0000Message-ID: <This email address is being protected from spambots. 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1) do not post on ano†hers thread. Your problem is not theirs and visavera

2) READ the bounce the reason is there

Mail from 40.107.236.100 refused because IP is on SpamCop - see spamcop.net/bl.shtml

he needs to have his email processor fix this we cannot.