ServisiServisi nnaa Internetu Internetu -- uvoduvodtelekomunikacije.etf.rs/predmeti/ot4ai/Servisi -...

ServisiServisi nana InternetuInternetu

-- uvoduvod --

drdr Nenad Nenad KrajnoviKrajnovićć

Katedra za telekomunikacije Katedra za telekomunikacije

Elektrotehnički fakultet BeogradElektrotehnički fakultet Beograd

Kako Kako ““radiradi”” GMAIL?GMAIL?

©Krajko©Krajko 22

GMAILGMAIL

INTERNET

HTTPS

saobraćaj

©Krajko©Krajko 33

INTERNET

Podržava IPv6 u komunikaciji.

GMAILGMAIL

INTERNET

(SM

TP

)

SMTP

©Krajko©Krajko 44

(IMAP4, POP3)(S

MT

P)

U internoj komunikaciji

Google verovatno

koristi i neke druge

protokole

Gmail i IPv6Gmail i IPv6To ensure that Gmail can identify you:To ensure that Gmail can identify you:

–– Use a consistent IP address to send bulk mail.Use a consistent IP address to send bulk mail.

–– Keep valid reverse DNS records for the IP address(Keep valid reverse DNS records for the IP address(eses) from which you send mail, pointing to ) from which you send mail, pointing to

your domain. Use the same address in the 'From:' header on every bulk mail you send.your domain. Use the same address in the 'From:' header on every bulk mail you send.

We also recommend the following:We also recommend the following:–– Sign messages with DKIMSign messages with DKIM11. We do not authenticate messages signed with keys using fewer . We do not authenticate messages signed with keys using fewer

than 1024 bits.than 1024 bits.

–– Publish an SPFPublish an SPF22 record.record.–– Publish an SPFPublish an SPF record.record.

–– Publish a DMARCPublish a DMARC33 policy.policy.

Additional guidelines for IPv6Additional guidelines for IPv6–– The sending IP must have a PTR record (i.e., a reverse DNS of the sending IP) and it should The sending IP must have a PTR record (i.e., a reverse DNS of the sending IP) and it should

match the IP obtained via the forward DNS resolution of the hostname specified in the PTR match the IP obtained via the forward DNS resolution of the hostname specified in the PTR

record. Otherwise, mail will be marked as spam or possibly rejected.record. Otherwise, mail will be marked as spam or possibly rejected.

–– The sending domain should pass either SPF check or DKIM check. Otherwise, mail might be The sending domain should pass either SPF check or DKIM check. Otherwise, mail might be

marked as spam.marked as spam.

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1 www.dkim.org

DomainKeys

Identified Mail

2 www.openspf.org

Sender Policy

Framework

3 dmarc.org

Domain-based Message

Authentication, Reporting &

Conformance

Kako Kako ““radiradi”” Facebook?Facebook?

©Krajko©Krajko 66

ServisiServisi nana InternetuInternetu

-- uvoduvod --

ddr r Nenad Nenad KrajnoviKrajnovićć

Katedra za telekomunikacije Katedra za telekomunikacije

Elektrotehnički fakultet BeogradElektrotehnički fakultet Beograd

ServisiServisi nnaa Internetu Internetu -- uvoduvodtelekomunikacije.etf.rs/predmeti/ot4ai/Servisi -...

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