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Mailjet — Email 101

Florian Le Goff
October 01, 2013
140

Mailjet — Email 101

About SPF, DKIM and MX records...

Florian Le Goff

October 01, 2013
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  1. Headline should look like this DKIM SPF DNS Setup IP

    History Domain History Dedicated IP SMTP Mailjet.com takes care of everything
  2. Headline should look like this DKIM DNS Setup IP History

    Dedicated IP Mailjet.com takes care of everything Reputation abuse performance Scaling SPF Domain History SMTP
  3. Headline should look like this integrating Mailjet is quick and

    easy use our SMTP server as a relay and you’re DONE
  4. Headline should look like this realtime realtime like, pushing the

    data feedback loop anyone ? behavior driven applications...
  5. Headline should look like this blank images Mail From: [email protected]

    ... <img src="https:// r.mailjet.com/ 3293SDsdssddsd.png" width="1px" height="1px" /> ... </html> reader’s computer
  6. Headline should look like this blank images Mail From: [email protected]

    ... <img src="https:// r.mailjet.com/ 3293SDsdssddsd.png" width="1px" height="1px" /> ... </html> r.mailjet.com reader’s computer
  7. Headline should look like this blank images Mail From: [email protected]

    ... <img src="https:// r.mailjet.com/ 3293SDsdssddsd.png" width="1px" height="1px" /> ... </html> r.mailjet.com reader’s computer
  8. Headline should look like this blank images Mail From: [email protected]

    ... <img src="https:// r.mailjet.com/ 3293SDsdssddsd.png" width="1px" height="1px" /> ... </html> r.mailjet.com reader’s computer yourapp.com
  9. Headline should look like this blank images Mail From: [email protected]

    ... <img src="https:// r.mailjet.com/ 3293SDsdssddsd.png" width="1px" height="1px" /> ... </html> r.mailjet.com reader’s computer yourapp.com EventAPI
  10. Headline should look like this blank images Mail From: [email protected]

    ... <img src="https:// r.mailjet.com/ 3293SDsdssddsd.png" width="1px" height="1px" /> ... </html> r.mailjet.com reader’s computer yourapp.com EventAPI
  11. Headline should look like this redirector ? Mail From: [email protected]

    ... <a href="https:// r.mailjet.com/ sdSDkls">my cool link!</ a> ... </html> reader’s computer yourapp.com r.mailjet.com
  12. Headline should look like this redirector ? Mail From: [email protected]

    ... <a href="https:// r.mailjet.com/ sdSDkls">my cool link!</ a> ... </html> reader’s computer yourapp.com r.mailjet.com
  13. Headline should look like this redirector ? Mail From: [email protected]

    ... <a href="https:// r.mailjet.com/ sdSDkls">my cool link!</ a> ... </html> reader’s computer yourapp.com HTTP 3XX EventAPI r.mailjet.com
  14. Headline should look like this redirector ? Mail From: [email protected]

    ... <a href="https:// r.mailjet.com/ sdSDkls">my cool link!</ a> ... </html> reader’s computer yourapp.com HTTP 3XX EventAPI r.mailjet.com
  15. Headline should look like this Simple Mail Transfer Protocol RFC

    5321 sender (you) recipient mta mta SMTP SMTP IMAP, POP..
  16. Headline should look like this Simple Mail Transfer Protocol sender

    (you) mailjet gmail SMTP SMTP DNS Server MX records
  17. Headline should look like this Simple Mail Transfer Protocol minihund

    ~ % dig poxx.net MX ; <<>> DiG 9.8.3-P1 <<>> poxx.net MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62920 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 8 ;; QUESTION SECTION: ;poxx.net. IN MX ;; ANSWER SECTION: poxx.net. 86396 IN MX 100 mxb.ovh.net. poxx.net. 86396 IN MX 1 mx1.ovh.net. poxx.net. 86396 IN MX 5 mx2.ovh.net. ;; ADDITIONAL SECTION: mx1.ovh.net. 85392 IN A 213.186.33.29 mx2.ovh.net. 85725 IN A 213.186.33.45 mxb.ovh.net. 84923 IN A 213.186.35.149 mxb.ovh.net. 84923 IN A 213.186.35.158 mxb.ovh.net. 84923 IN A 213.186.37.67 mxb.ovh.net. 84923 IN A 213.186.37.103 mxb.ovh.net. 84923 IN A 213.186.38.144 mxb.ovh.net. 84923 IN A 213.186.39.173 ;; Query time: 52 msec ;; SERVER: 192.168.178.1#53(192.168.178.1) ;; WHEN: Wed Jul 10 22:47:05 2013 ;; MSG SIZE rcvd: 218
  18. Headline should look like this Simple Mail Transfer Protocol sender

    (you) mailjet gmail SMTP SMTP DNS Server MX records
  19. Headline should look like this SMTP’s dirty secret sender (you)

    mailjet gmail SMTP DNS Server MX records spam box1 spammer (not you.)
  20. Headline should look like this Sender Policy Framework RFC 4408...6652

    sender mailjet gmail checks for IP address in the SPF records DNS Server public IP published
  21. Headline should look like this Sender Policy Framework RFC 4408...6652

    sender mailjet gmail checks for IP address in the SPF records DNS Server public IP published in a nutshell you disclose the list of servers allowed to send e-mails on your behalf
  22. Headline should look like this DomainKeys Identified Mail RFC 4871

    sender mailjet gmail signs e-mails with a private key checks the signature against the public key DNS Server DNS pub DNS req
  23. Headline should look like this DomainKeys Identified Mail RFC 4871

    sender mailjet gmail signs e-mails with a private key checks the signature against the public key DNS Server DNS pub DNS req in a nutshell cryptographically signed emails (better than SPF)