sils.unc.edu/it-services/email-faq/outlook

This article explains how to enable the Transport Layer Security (TLS) protocol for the Microsoft Outlook email program. Enabling TLS in Outlook will improve the security of your email communication by encrypting the way Outlook communicates with your ...

www2.suresupport.com/faq/79/471

This is a simple to follow tutorial on how to setup outlook 2010 with SSL.

stackoverflow.com/questions/15796530/what-is-the-difference-...

These ports 465 and 587 are both used for sending mail (submitting mail) but what is the real difference between them?

www.emailaddressmanager.com/tips/spam-header.html

How to analyze a spam email header.

en.wikipedia.org/wiki/DomainKeys_Identified_Mail

DomainKeys Identified Mail (DKIM) is an email validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain is authorized by that domain's administrators and th ...

support.postmarkapp.com/customer/portal/articles/64736-how-c...

If you are having trouble verifying your SPF or DKIM records there are two useful tools you can use. Keep in mind that DNS make take several hours to propagate.

www.rackaid.com/blog/email-dns-records/

Bad DNS settings can undermine your email marketing campaigns. Fix up your DNS records and improve email open rates with these DNS tips.

protodave.com/security/checking-your-dkim-dns-record/

Due to the recently released vulnerability related to the use of weak cryptographic DKIM keys, I wrote a tool to check DKIM records and determine their public key length: DKIM Key Checker

www.mydigitallife.info/how-to-check-test-and-validate-spf-re...

SPF record in the domain DNS tree level is the new tool to combat email spam that trying to forge or spoof sender SMTP MAIL FROM and Return-Path from your domain zone. However, incorrect or misconfiguration of SPF definitions may lead to email been dis ...

www.activecampaign.com/spf/

Sender Policy Framework (SPF) is a method for preventing sender address forgery. As a result domains require an SPF record for their mail systems if they want their emails to be accepted by those providers.

mandrill.zendesk.com/hc/en-us/articles/205582267-What-are-SP...

In This Article:

• SPF and DKIM Authentication
• Category:SPF / DKIM / DMARC