WebThe senders were using office 365 as a provider. We tracked this to a Reverse DNS failure, which was correctly identified by SmarterMail and therefore given a high SPAM score as we have always had this set to a relatively high number in SPAM settings. It would seem Microsoft acknowledge this as an issue and state Sending MTA does not require a ... WebAdministrators should configure a reverse DNS (PTR) record if they specify hostnames in the Mail Hosts section of the Relay Control feature, otherwise, email will be accepted. Sign …

Set up SPF to help prevent spoofing - Office 365 Microsoft Learn

Web13 Jun 2024 · To fix this, work with your DNS hosting provider (your domain registrar, Web hosting provider, or ISP) to set up a correct PTR record for your domain. If you're using … Web15 Mar 2024 · Step 1: Add a TXT or MX record to verify you own the domain Step 2: Add DNS records to connect Microsoft services Related content If you purchased a domain … hippo roofing military discount

Misconfigured PTR record - Office 365 - The Spiceworks Community

WebIt appears that the pointer (PTR) record for OUR DOMAIN isn't set up correctly. Set up or fix your domain's PTR record - If you're the admin for OUR DOMAIN, work with your DNS hosting provider (your domain registrar, Web hosting provider, or ISP) to correctly set up a PTR record for your domain. Web13 May 2024 · Set up or fix your domain’s PTR record - If you’re the admin for chieftechofficer.co.uk, work with your DNS hosting provider (your domain registrar, Web … Web7 Jul 2024 · Log in to your Office 365 account and navigate to Setup > Domains. From the domains tab, select the domain you verified in the previous section. In the Required DNS … hippors