Sysadmin Today #51: SPF, DKIM & DMARC

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In this episode, I am going to focus on SPF, DKIM & DMARC. Please visit https://sysadmintoday.com to subscribe.

Host: Paul Joyner
Email: paul@sysadmintoday.com
Facebook: https://www.facebook.com/sysadmintoday
Twitter: https://twitter.com/SysadminToday


Show Links

SysAdmin Show
http://sysadminshow.com/

SPF Best Practices
https://www.socketlabs.com/blog/best-practices-sender-policy-framework-spf/

DMARC Analyzer
https://dmarcian.com/

SPF Validation Tool
https://dmarcian.com/spf-survey/

DKIM Best Practices
https://www.socketlabs.com/blog/best-practices-dkim/

DMARC Explained
https://www.sparkpost.com/resources/email-explained/dmarc-explained/

DMARC Alignment Mode Explained
https://help.returnpath.com/hc/en-us/articles/224236627

Setting up DKIM for SalesForce
https://www.youtube.com/watch?v=UfbeJ_4I24I

Please Support the Channel
https://www.patreon.com/sysadmintoday

Sysadmin Today #44: WAF, VLANs, DNS & Office 365 Auditing

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In this episode, I will discuss WAF, VLANs, DNS and Office 365 Auditing.

Host: Paul Joyner
Email: paul@sysadmintoday.com
Facebook: https://www.facebook.com/sysadmintoday
Twitter: https://twitter.com/SysadminToday


Microsoft SharePoint Migration Tool
https://docs.microsoft.com/en-us/sharepointmigration/introducing-the-sharepoint-migration-tool

Setting up Azure Web Application Firewall
https://docs.microsoft.com/en-us/azure/application-gateway/application-gateway-web-application-firewall-portal

About The Open Web Application Security Project

https://www.owasp.org/index.php/About_The_Open_Web_Application_Security_Project

DNS Made Easy Failover Tutorials
http://help.dnsmadeeasy.com/dns-failover/configure-dns-failover/

Enabling Office 365 mailbox auditing
https://support.office.com/en-us/article/turn-office-365-audit-log-search-on-or-off-e893b19a-660c-41f2-9074-d3631c95a014

Please Support the Channel
https://www.patreon.com/sysadmintoday   



Sysadmin Today #39: Sharing Stories

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In this episode, I will share stories about VMware, SAN’s, SQL and more.

Host: Paul Joyner
Email: paul@sysadmintoday.com
Facebook: https://www.facebook.com/sysadmintoday
Twitter: https://twitter.com/SysadminToday


EveryCloud
https://www.everycloudtech.com/everycloud-email-protection

QLogic 57810S Dual Port 10Gb Base-T Server Adapter
https://www.dell.com/en-us/work/shop/accessories/apd/430-4412

Cisco Meraki Clock Signal Component Issue
https://meraki.cisco.com/blog/terms-conditions-of-the-meraki-clock-signal-component-issue-replacement-process/

SQL Express Information
https://stackify.com/what-is-sql-server-express/

Please Support the Channel
https://www.patreon.com/sysadmintoday   



Sysadmin Today #38: Email Security

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In this episode, I will discuss email security best practices.

Host: Paul Joyner
Email: paul@sysadmintoday.com
Facebook: https://www.facebook.com/sysadmintoday
Twitter: https://twitter.com/SysadminToday


Show Links

Podnutz Episode discussing Automation
http://podnutz.com/podnutz273/

Reverse DNS Checker
https://www.debouncer.com/reverse-dns-check?attempt=1

SPF, DKIM & DMARC Information
https://blogs.technet.microsoft.com/fasttracktips/2016/07/16/spf-dkim-dmarc-and-exchange-online/

Exchange 2016 Anti-Spam Setup
http://msexchangeguru.com/2017/08/08/exchange-2016-anti-spam-configuration/

Exchange 2013 Anti-Spam Setup
http://techgenix.com/anti-spam-and-anti-malware-protection-exchange-2013-part1/

Exchange 2010 Anti-Spam Setup
http://www.mustbegeek.com/configure-anti-spam-agents-in-exchange-2010/

How to Create a rule to prevent spoofing
https://www.intrust-it.com/2015/10/14/use-mail-rules-in-office-365-to-tag-emails-with-spoofed-senders/

Preparing for the mandatory use of TLS 1.2 in Office 365
https://support.microsoft.com/en-us/help/4057306/preparing-for-tls-1-2-in-office-365

Encrypted Messaging
https://pixelprivacy.com/resources/encrypted-messaging/

RBL List
Spam Cop:          bl.spamcop.net
Surriel:                psbl.surriel.com
Spamhaus:         zen.spamhaus.org
Sorbs:                  dnsbl.sorbs.net
Barracuda:          b.barracudacentral.org


Please Support the Channel
https://www.patreon.com/sysadmintoday