Multi-Stage Open Relay chains that have sent spam to us and are not listed on one of the other active RBLs -- If you tried to send email and it was REJECTED with an error message that pointed to this page, then the IP address of your outgoing mail server is on our local blacklist. To see if you are on the SpamGuard list (or many of the other lists), go to this URL: http://relays.osirusoft.com/cgi-bin/rbcheck.cgi and enter your IP Address/Domain. If you run a mail server and need help in securing it, then please go here: http://mail-abuse.org/tsi/ar-fix.html for more details.
DMARC is the key to improving Email Deliverability!
Email is the key to your customer communication strategy. But, what is your email reputation?
Setting up and managing your DMARC configuration is the key to getting insight into your email delivery. MxToolbox is the key to understanding DMARC.
MxToolbox Delivery Center gives you:
- Who is sending phishing email purporting to be from your domain
- What is the reputation of your domains and delegated IPs
- Where other senders are and What their reputations are
- How your SPF, DKIM and DMARC setup is performing
- What on-going maintenance you need to maintain and improve your email deliverability
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