SMTP, Application layer ?

SiLentThReaDSiLentThReaD Member Posts: 8 ■□□□□□□□□□
in Network+
SMTP runs on the upper layers, above the applications layer.

Can we say that SMTP is a form of software gataway ?
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  • WebmasterWebmaster Admin Posts: 10,292 Admin
    Not above the application layer, but on it.
    Can we say that SMTP is a form of software gataway ?
    In some remote ways, you could say that... I wouldn't though ;) Especially not in terms of CompTIA...
    SMTP is a protocol. A gateway can be software that translates between protocols, but STMP connects to SMTP... i.o.w. there are no gateways that translate from POP3 to SMTP.

    But oif you have a dedicated server with 'SMTP relay' software on it, you could consider it as being an SMTP gateway (for e.g. forwarding all SMTP traffic in an internal network that is meant to go to the Internet.)
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  • SiLentThReaDSiLentThReaD Member Posts: 8 ■□□□□□□□□□
    wow, thanks again, this web-site rules icon_lol.gif
    My next goal is the Network+ Certification.
    I can almost taste it.
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