Hacker News
- #Phishing like early 90's. Spoofing emails when DMARC isn't available or commonly known as "SPF-BYPASS". https://www.redteam.cafe/phishing/long-live-dmarc-email-spoof-issues 12 comments netsec
- Bluehost dropping all non-SPF compliant mail instead of forwarding it. Recommend not relying on Bluehost forwarding email for anything. http://cantonbecker.com/etcetera/2014/bluehost-email-forward-does-not-work/ 4 comments sysadmin
- Why would an inbound email from a 3rd party have an IP internal to our org in the SPF record? None 7 comments sysadmin
- SPF Record issues sending to a specific external email https://www.reddit.com/r/sysadmin/comments/n43b92/spf_record_issues_sending_to_a_specific_external/ 7 comments sysadmin
- SPF record - edit to add known marketing domain - icpbounce.com (aka icontact) https://www.reddit.com/r/sysadmin/comments/miqwj7/spf_record_edit_to_add_known_marketing_domain/ 6 comments sysadmin
- Having problems creating internal dns txt record (for spf) (Windows) https://www.reddit.com/r/sysadmin/comments/jwgjkx/having_problems_creating_internal_dns_txt_record/ 16 comments sysadmin
- The Confused Mailman: Sending SPF and DMARC passing mail as any Gmail or G Suite customer https://ezh.es/blog/2020/08/the-confused-mailman-sending-spf-and-dmarc-passing-mail-as-any-gmail-or-g-suite-customer/ 48 comments netsec
- Ronald Reagan Attack (Gmail's SPF bypass) // Outlook for iOS/Android S/MIME certificate https://www.reddit.com/r/sysadmin/comments/guq44s/ronald_reagan_attack_gmails_spf_bypass_outlook/ 15 comments sysadmin
- DNS Question - Subdomain set to CNAME - does SPF follow the destination domain? https://serverfault.com/questions/771402/is-it-valid-to-have-spf-records-for-a-domain-that-is-a-cname 4 comments sysadmin
- What's the point (when to use) question mark in SPF? https://www.reddit.com/r/sysadmin/comments/dbtdi3/whats_the_point_when_to_use_question_mark_in_spf/ 6 comments sysadmin
- WebEx SPF Dumpster fire https://www.reddit.com/r/sysadmin/comments/cvo29y/webex_spf_dumpster_fire/ 20 comments sysadmin
- Detecting Phishing with SPF Macros https://duo.com/labs/tech-notes/detecting-phishing-with-spf-macros 5 comments netsec
- SPF record is too big https://www.reddit.com/r/sysadmin/comments/blv69s/spf_record_is_too_big/ 22 comments sysadmin
- Has anyone dealt with Surveymonkey in regards to SPF & DKIM? https://www.reddit.com/r/sysadmin/comments/b2midn/has_anyone_dealt_with_surveymonkey_in_regards_to/ 6 comments sysadmin
- Mail Deliverability Issues: DMARC, SPF, and openDKIM https://dmarcanalyzer.com 19 comments linuxadmin
- Custom SPF on Office 365 https://www.reddit.com/r/sysadmin/comments/aeuf7m/custom_spf_on_office_365/ 17 comments sysadmin
- Did email hosts recently begin upping the requirements as far as SPF and DKIM for servers? https://help.yahoo.com/kb/postmaster/SLN3434.html 12 comments sysadmin
- O365 emails going to spam, but they are DKIM and SPF aligned and already added to user's safe senders list and CRM domain is not in email headers https://www.reddit.com/r/sysadmin/comments/9vy76r/o365_emails_going_to_spam_but_they_are_dkim_and/ 6 comments sysadmin
- Domain Records (SPF) 1 Email Server 2 Domains https://www.reddit.com/r/sysadmin/comments/9v5ojq/domain_records_spf_1_email_server_2_domains/ 24 comments sysadmin
- How Spam Filtering Works: From SPF to DKIM to Blacklists https://deliciousbrains.com/how-spam-filters-works/ 4 comments coding
- A new study has found that most of us are putting on sunscreen wrong, and are only getting 40 percent of the SPF protection we think we are. While it's common knowledge that you need to cover all exposed skin in sunscreen, the study shows that most of us don't coat it on anywhere near thick enough. https://www.sciencealert.com/most-of-us-are-applying-sunscreen-wrong-skin-cancer-risk 270 comments science
- Odd issue without SPF record causing email to gmail to fail https://www.reddit.com/r/sysadmin/comments/7gs8o8/odd_issue_without_spf_record_causing_email_to/ 3 comments sysadmin
- 10GB SPF Optical NIC to 10GB Copper Twinax Switch https://www.reddit.com/r/sysadmin/comments/77cm7w/10gb_spf_optical_nic_to_10gb_copper_twinax_switch/ 4 comments sysadmin
- [Office 365] SPF record passes for a scammer/phishing attempt if they are also using Office 365? https://www.reddit.com/r/sysadmin/comments/75iwjo/office_365_spf_record_passes_for_a/ 23 comments sysadmin
- Should I be using SPF records for domains that don't send mail to help prevent phishing? https://www.reddit.com/r/sysadmin/comments/6u5zyo/should_i_be_using_spf_records_for_domains_that/ 23 comments sysadmin
- My mail server gets detected as spam (SPF, DKIM, DMARC, rDNS works, not blacklisted) https://www.reddit.com/r/sysadmin/comments/6tm7h6/my_mail_server_gets_detected_as_spam_spf_dkim/ 9 comments sysadmin
- Large Orgs Not Updating SPF Records https://www.reddit.com/r/sysadmin/comments/6pbn3c/large_orgs_not_updating_spf_records/ 23 comments sysadmin
- SPF soft fail behavior with O365 https://www.reddit.com/r/sysadmin/comments/6lupzh/spf_soft_fail_behavior_with_o365/ 7 comments sysadmin
- Security of email for G-Suite users - SPF, DKIM & DMARC https://www.reddit.com/r/sysadmin/comments/6ezzgx/security_of_email_for_gsuite_users_spf_dkim_dmarc/ 61 comments sysadmin
- After #SPF, #DKIM, #DMARC, here is #ARC : Authenticated Received Chain [pdf] https://dmarc.org/presentations/arc-overview-2016q3-v01.pdf 6 comments netsec
- SPF Dummy Check https://www.reddit.com/r/sysadmin/comments/5kqv16/spf_dummy_check/ 9 comments sysadmin
- More than 50% of top 500 Alexa uses a insufficient combination of SPF, DKIM and DMARC https://blog.detectify.com/2016/06/20/misconfigured-email-servers-open-the-door-to-spoofed-emails-from-top-domains/ 8 comments netsec
- Office 365 Hybrid and SPF failure https://www.reddit.com/r/sysadmin/comments/4lz5nu/office_365_hybrid_and_spf_failure/ 14 comments sysadmin
- Help with E-mail? DKIM, SPF, DMARC https://www.reddit.com/r/sysadmin/comments/4hnd5x/help_with_email_dkim_spf_dmarc/ 12 comments sysadmin
- DKIM, SPF, and Spam Assassin Validator http://dkimvalidator.com/ 4 comments sysadmin
- Debian Mail Server, Part II: SPF and DKIM https://scaron.info/blog/debian-mail-spf-dkim.html 6 comments linuxadmin
- Prevent spammers from sending mails that abuse your domain name using an SPF record https://www.vanstechelman.eu/content/prevent-spammers-sending-mails-abuse-your-domain-name-using-spf-record 13 comments sysadmin
- MSGEQ7 + SPF Electret Mic Breakout: anyone have a schematic? http://www.sparkfun.com/products/9964 4 comments arduino
- How Do They Measure SPF? Do they just let people get burned? Actually... http://www.slate.com/toolbar.aspx?action=print&id=2171789 5 comments reddit.com