[Dovecot] Disable multiple POP3 logins

[Timo Sirainen]

On 20.4.2005, at 20:21, Marten Lehmann wrote:

>> With some POP3 servers,  when you login more than once, the POP3 
>> server says "Err: multiple login". How can I achieve that with 
>> dovecot ?
>
> this is nothing that's really useful. At your ISP, this is probably 
> due to a lockfile if messages are stored in the mbox-format, because 
> if two processed would modify your mbox-file, the file would get 
> corrupt. The disadvantage is clear: If the process dies for whatever 
> reason, the lockfile wouldn't be removed and you could never login 
> again until you call the pop3-administrator to manually remove the 
> lockfile. Also, you couldn't check for new messages with webmail, 
> while your email-client is downloading an email with a very large 
> attachment.
> So far about the benefits and drawbacks of blocking multiple logins, 
> however, I can't tell you if dovecot is capable of preventing parallel 
> logins.

It's not. And I don't think it will be unless someone gives a good 
reason for it.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: PGP.sig
Type: application/pgp-signature
Size: 186 bytes
Desc: This is a digitally signed message part
URL: <http://dovecot.org/pipermail/dovecot/attachments/20050421/7e9947e4/attachment-0001.bin>