free pop3 server class wanted

  • Thread starter Thread starter John Smith
  • Start date Start date
J

John Smith

i`m trying ( :( to write an email app

somewhere here i saw a link to
Lesnikowski dll which is a nice pop3 client

now i need something similar but doing the

server work

and 1 more question

there will be like 50 cliens -

should i use multiple threads or asyncronous operation

or o combination of them?

any urls on the subject are welcome



TIA
 
So you would like to have a free costable Mail Server that supports POP3 !
That's right ?

I found it but not in .Net technology. See that :
Courier 0.45 Beta at SourceForge

Bismark
 
you'll need to multi-thread each connecting client...lots of examples on the
net.

there are only a few commands for smtp/pop3 defined in the rfcs. the only
confusing thing you may have to tackle is the APOP command. i'll help you
out there. when someone gives your pop3 a HELO, you give them an appropriate
resonse where the text message portion returned is a unique value (usually
in the form of "<2004-04-13 09:30:00>"). your server will "remember" that
value for that client. next, the client issues the APOP command giving you
the user name and the md5 representation of their password concatenated with
your unique value. you get the real password for that user and do the same
concatenation...if your md5 and their md5 don't match, then they have failed
to authenticate...else, you're...errr...they're in business.

the rest is simply issuing the rfc responses to the client's rfc requests.
on the server side of things, you just need to know where the user's mail
folder is in order to retrieve their messages for them. there is one last
thing to note...you need to know where the iis (or whatever smtp software
you are running) mail drop folder is. you can either watch that folder for
newly created files or use cdo's onMailArrival event to look for new
messages. when a new message arrives, you'll need to move the message to the
appropriate user's mailbox/directory.

that's it. happy rfc-ing.

hth,

steve


| i`m trying ( :( to write an email app
|
| somewhere here i saw a link to
| Lesnikowski dll which is a nice pop3 client
|
| now i need something similar but doing the
|
| server work
|
| and 1 more question
|
| there will be like 50 cliens -
|
| should i use multiple threads or asyncronous operation
|
| or o combination of them?
|
| any urls on the subject are welcome
|
|
|
| TIA
|
|
|
|
 
i`m trying ( :( to write an email app

somewhere here i saw a link to
Lesnikowski dll which is a nice pop3 client

now i need something similar but doing the

server work
Click to expand...

Are you writing it for actual use, or to exercise your programming
skills?

There's a free server that does everything you could want and more:
MailEnable Standard (http://www.mailenable.com).

Reinventing the wheel usually isn't necessary ;-)


BTW: the release dates on the website apply to the _latest_ releases.
The Standard an Pro versions have been around for some years, and are
stable. I've been using Standard for [I think] about two years now,
and never had a single problem.
 
* "John Smith said:
somewhere here i saw a link to
Lesnikowski dll which is a nice pop3 client

now i need something similar but doing the

server work

and 1 more question

there will be like 50 cliens -

should i use multiple threads or asyncronous operation

or o combination of them?

any urls on the subject are welcome
Click to expand...

Do you already have a POP3 class and are looking for general information
on how to write a POP client, or do you need such an class?
 
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