SMTP

Email Security Foundations #05 – DKIM deep dive: signing, selectors and how verification works

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This post is part of the Email Security Foundations series on MSDigest.net. What DKIM actually does DKIM stands for DomainKeys Identified Mail. Where SPF checks where a message came from, DKIM proves that the message hasn’t been changed while it was in transit. When you send an email, your mail server adds a cryptographic signature to the message. When the receiving server gets it, it looks up your public key in DNS and uses that …

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Cannot remove the domain ‘‘ because it is referenced by the proxy address template ‘smtp:@‘

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As issue that I’ve seen on Exchange 2007 after a migration from Exchange 2003, if you try to remove an accepted domain, but keep getting this error: Cannot remove the domain ‘<domain name>’ because it is referenced by the proxy address template ‘smtp:@<domain name>’ First off go to the Exchange Management Console – Microsoft Exchange – Organisation configuration – Hub Transport – E-mail Address Policies. Make sure that the domain is removed from any policies …

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