Re: [cobalt-users] RAQ 4 Email Relaying

[Jeff Lasman <jblists@xxxxxxxxxxxxx>]

"Ray Healy (Data Net Services)" wrote:

> I thought I would be able to give access to the SMTP just by entering  the
> clients Domain Name held on my Server in the "Hosts/Domains allowed to
> relay" when I create their virtual accounts.

If you could do that then anyone could forge their domain name and spam
the 'net.  If you did it  you'd be listed in all the spam databases on
the 'net within a matter of weeks to months, and then neither you nor
your customers could send email at all.

> The only time this works is when I have "PoP before SMTP" enabled at which
> point they have to collect their mail before sending. The only problem with
> this is if they miss the window for relaying (30mins) or they have created
> their messages off-line, they will still get the message as the email
> programs want to send before they collect. Which is fine as they only have
> to "send" again and the message will go. Most of my clients are not happy
> with this and have complained as they some have automated sending/collection
> systems in place.

We've installed and activated POP before SMTP (because I use it from
home), but we don't advertise the fact; instead we tell our customers
they should use their ISP for outgoing email.

This is pretty much the 'net standard these days; let the ISP deal with
the possibility of the client spamming, using too much bandwidth, etc.

Please let us know if you decide to create a mail server that can be
used for relaying.  So we can block email from you.

Thanks.

Jeff
-- 
Jeff Lasman <jblists@xxxxxxxxxxxxx>
Linux and Cobalt/Sun/RaQ Consulting
nobaloney.net
P. O. Box 52672, Riverside, CA  92517
voice: (909) 778-9980  *  fax: (702) 548-9484