Subject: question ?

From: dgwangg <[email-masked]>
Date: Mon, 22 Sep 1997 16:22:33 -0400

Dear Sir:
    I have a question. Would you like to give me an answer.
    I using SGI IRIX unix and I find in /var/mail catalogue has two type
of files. One are .username.pop files  and the other is username
files.Some user have  two kinds of the files ,and some one has only one
kind  of the files.I using  command ps -ef check ,there only one mail
process sendmail .Some one told me that pop is used to receive mail and
sendmail is used to send mail . Is that correct.

Merrychristmas !
      from a Unix green hand.

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From: Y M Kung Charles <[email-masked]>
Date: Tue, 23 Dec 1997 23:43:27 +0800 (HKT)

Hi,

I think your system provides POP mail services. Those .pop files are left
after POP connections are disconnected(not gracefully?).

Sendmail is an SMTP MTA. POP and SMTP are different protocols for mail
services.