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https://mail.live.com/mail/troubleshooting.aspx#Codes

mail.live.com/mail/troubleshooting.aspx#Codes

This section provides troubleshooting information for senders who are having trouble reaching Outlook.com users by email. If you are an Outlook.com user looking for support with your account, please visit our Category:Email
Visited134
http://support.postmarkapp.com/customer/portal/articles/64736-how-can-i-check-if-my-dkim-and-spf-records-are-valid-

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.

Visited115
https://www.rackaid.com/blog/email-dns-records/

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.

Category:DNS
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http://protodave.com/security/checking-your-dkim-dns-record/

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

Visited188
http://www.mydigitallife.info/how-to-check-test-and-validate-spf-record-in-dns-is-correct-and-valid/

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 ...

Visited197
http://www.activecampaign.com/spf/

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.

Visited234
https://support.google.com/a/answer/2466563?hl=en

support.google.com/a/answer/2466563?hl=en

Once SPF and DKIM are in place, you configure DMARC by adding policies to your domain's DNS records in the form of TXT records (just like with SPF or ADSP).

Visited110
http://dkimcore.org/

dkimcore.org

DKIM Core is a way to attach a token (or tokens) to an email that tells the recipient who is responsible for the email (typically the token would represent the author of the email, the operator of the email service, or the owner of a mailing list, but ...

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http://vamsoft.com/support/tools/spf-syntax-validator

vamsoft.com/support/tools/spf-syntax-validator

Helps creating SPF policies by validating the syntax of SPF policy data.

Visited109
http://vamsoft.com/support/tools/spf-policy-tester

vamsoft.com/support/tools/spf-policy-tester

Test IP addresses against live or a directly entered SPF policy and get a detailed evaluation log of the test. Helps with troubleshooting.

Visited115
https://otalliance.org/resources/spf-dmarc-record-validator

otalliance.org/resources/spf-dmarc-record-validator

Tool to validate if SPF and DMARC records have been "published" in a domain's DNS zone file. The tool will query the DNS of the respective domains and present the records found. Up to 500 domains may be entered. Tools to validate SPF and DMARC records ...

Visited110
http://www.seoconsultants.com/tools/spf/

www.seoconsultants.com/tools/spf/

What is SPF? SPF fights return-path address forgery and makes it easier to identify spoofs. Domain owners identify sending mail servers in DNS. SMTP receivers verify the envelope sender address against this information, and can distinguish authentic me ...

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http://www.spfwizard.net/

www.spfwizard.net

This ajax enabled wizard will guide you through the process of creating or editing a SPF record for your DNS domain. You should add this DNS record to your domain's DNS configuration.

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http://www.spfwizard.net/what-is-spf-record.html

www.spfwizard.net/what-is-spf-record.html

An article on what Sender Policy Framework (SPF) is.

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http://www.openspf.org/

www.openspf.org

The homepage of the Sender Policy Framework project.

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http://dkimvalidator.com/

dkimvalidator.com

Now you can quickly view your DomainKeys, DKIM, and SPF validity, and SpamAssassin score in one place. Just send an email to any address @dkimvalidator.com. Then check here to see the results.

Category:Spam Checker
Visited208
http://www.protodave.com/tools/dkim-key-checker/

www.protodave.com/tools/dkim-key-checker/

Use this tool to lookup and verify a DKIM TXT record and determine its public key length. You can read more about why I wrote this tool. Please let me know if you find a record that doesn’t parse properly and I’ll update my code.

Visited185
http://www.mail-tester.com/spf-dkim-check

www.mail-tester.com/spf-dkim-check

Check if your domain has these 2 email signatures set up and valid. What's DKIM and SPF? They're 2 effective email signatures against spoofing, phishing or impersonation. When recipients receive your emails, their spam filters automatically poke your d ...

Visited148
http://spf.myisp.ch/

spf.myisp.ch

This online SPF checker visualises and verifies SPF records.

Visited775