> -----Original Message----- > From: owner-postfix-us...@postfix.org [mailto:owner-postfix- > us...@postfix.org] On Behalf Of Stan Hoeppner > Sent: Saturday, August 07, 2010 11:15 AM > To: postfix-users@postfix.org > Subject: Re: Postfix on Cloud > > Julio Cesar Covolato put forth on 8/7/2010 12:37 AM: > > > Is there anyone using postfix in cloud, like Amazon ec2? > > Dunno about Postfix specifically, but there are/were many spammers > operating > out of the Amazon cloud as well as the Rackspace cloud. Even if they > are > clean now, their reputation is still low due to prior traffic. > > > My questions: > > Is this interesting? > > The pros and cons.. > > Other clound sistem... > > Why and why not to cloud postfix. > > > > Anyone? > > No pros, only cons. TINW wholesale block SMTP from Amazon's cloud, > Rackspace's cloud, etc. Mail emitted from clouds and VPS servers at > cheap > ISPs has a much higher chance of being blocked, delayed, etc than that > from a > colo'd box at a reputable provider.
If you take a good VPS provider there is no difference between sending it from a VPS compared to sending it from a colo'd/dedicated box. The most important thing is that they have to be reputable (provider, network and range). A good VPS provider isn't necessarily cheap, however they can be cheap. > > Due to the pricing structure of cloud and VPS services they are both > attractive to spammers, and the spammers care not if they cause the > netblocks > they use to be scorched. They simply then move on to another VPS > provider in > search of "clean" cloud/VPS netblocks to spam from. We provide VPS packages if we don't trust the client they are forced to use our relay (where we do spam filtering). That makes it almost unusable for spammers (as we limit the number of emails per day and look to the numbers they try to send and if needed block their email functionality completely). > > Clouds and VPS are fine for a few classes of applications. SMTP mail > is not > one of them. As long as it is with a reputable provider there should be no problem to use them for SMTP mail. Mark > > -- > Stan
