On 04/08/2011 15:22, Alejandro Facultad wrote:
Dear, I have a Postfix mail server in my company and a person from here
is asking to send massive mails to a list of 15.000 recipients in order
to announce periodically our company's news.
I think with've got the risk that our mail server may be considered a
spam server, being included in some spam blacklist as Spamhaus and other.
I ask you: what is the recommendation to send legal massive mails ???
What is the better solution if I have to do that with Postfix ???
This isn't really a Postfix query - Postfix is an MTA, and like all MTAs
it will happily send spam just as easily as legitimate email :-)
However, since you've asked, you are absolutely right that there is a
danger of your server being listed as a spam source unless you are
careful to follow best practice for sending legitimate bulk emails. In
particular, you need to be sure that the following are true:
1. All of the recipients must have given their permission *to you* to be
on *this* list. It is not enough to assume that permission given to
another organisation will transfer to you, and it is not enough to
assume that permission to be on another list extends to this one.
2. You must have, on your own database, a record of when and how this
permission was given. You will need this because at least some people
will mistakenly accuse you of being a spammer anyway, because they have
forgotten that they subscribed. You need to be able to demonstrate that
they are wrong.
3. You must have an automated system for handling bounces and
unsubscriptions. Manually dealing with them will not be sufficient for a
list this size.
4. You must ensure that the content of the message is legal in your
jurisdiction.
5. If you do not know how to do all of the above without further
instructions, then do not send bulk email from your system. If you
really must send it anyway, then outsource it. The cost of paying an
experienced, legitimate mailing service is trivial compared to the costs
of being labelled a spammer.
Mark
--
Sent from my Babbage Difference Engine
http://mark.goodge.co.uk
http://www.ratemysupermarket.com
