Re: postfix and SASL

Quoting Ulf Rasch <u.rasch@seppelec.com>:

> SASL gives you the possibility to authenticate users.
> Email from mynetworks can send EMail. If you have people who don't
> connect to your mailserver from mynetworks (e.g. people with a
> notebook from a hotel, or people working at home) can not send mail
> through your mail server. Here comes in SASL that lets you
> authenticate these users comming from other networks allowing them to
> send mail.
>
> In addition if you have a IMAP server running your users can use the
> same password for their IMAP/POP account and for sending out mail.
>
> Ulf

It's what I read to O'REYLLY's Postfix book.
But I don't understand how it is possible to send a mail without beeing
connected to the mail server.

If I want to send a mail from a hotel with my mail client (thunderbird for
example) I have to configure it. But if my IP address is not in
"mynetworks", I
will never send any mail, no ?

Pascal

>
> pascal@linuxorable.net wrote:
>> Hi,
>>
>> I don't understand how does work SASL.
>>
>> Until I put the IP address of a machine to "mynetworks" this machine
>> can't send
>> mail. But once it is done, it can (and if it has an IMAP account of course).
>>
>> If it has an IMAP account, then it has a login and passwd in
>> /etc/sasldb2 so it
>> can log in to IMAP. As its IP address is in "mynetworks", it can use
>> Postfix to
>> send and receive mail.
>>
>> So why shoudl I configure SASL ?
>> I think I'm missing something !
>>
>> Pascal
>>
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>
>
>



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