Every cloud plan includes a set number of domains and email addresses, and adds more in expansion packs; every on-premise mail-server licence includes unlimited domains and mailboxes. Let us run SpamDuster for you on Linode, or license it for your own servers.
Your own dedicated SpamDuster server and the cloud it runs on, on one bill from us — no cloud account for you to open or manage. Plans differ only in the size of the server.
Prices in US dollars. You order and pay through the PortWall billing portal: SpamDuster is a PortWall product. Jakarta and São Paulo cost more because servers cost more to run there; every other region uses the standard prices. Annual plans are paid once a year and cost the same as 10 monthly payments (2 months free); backups are optional and cost the same monthly or yearly. Micro has no antivirus scanning: it filters spam and phishing, but 1 GB of memory is too little for the virus scanner — choose Small or larger to scan attachments for viruses.
Included domains and addresses are your plan's allowance, not a promise of capacity. How much mail a server handles comfortably depends on how it is used: the volume and size of the mail, how many attachments need scanning, and how busy each domain is. A server carrying heavy mail may need a larger plan before it reaches its allowance, while a quiet one may never come close. You can move up to a larger plan at any time.
| Plan | Standard regions | Jakarta | São Paulo |
|---|---|---|---|
| Micro1 CPU · 1 GB · 25 GB100 domains · 1,000 addresses | $19/mo$190/yrbackups +$2.50/mo | $23/mo$230/yrbackups +$3/mo | $27/mo$270/yrbackups +$3.50/mo |
| Small1 CPU · 2 GB · 50 GB250 domains · 2,500 addresses | $35/mo$350/yrbackups +$3/mo | $42/mo$420/yrbackups +$4/mo | $49/mo$490/yrbackups +$5/mo |
| Standard2 CPU · 4 GB · 80 GB500 domains · 5,000 addresses | $70/mo$700/yrbackups +$6/mo | $84/mo$840/yrbackups +$8/mo | $98/mo$980/yrbackups +$9/mo |
| Professional4 CPU · 8 GB · 160 GB1,000 domains · 10,000 addresses | $120/mo$1,200/yrbackups +$12/mo | $144/mo$1,440/yrbackups +$15/mo | $168/mo$1,680/yrbackups +$17/mo |
| Business6 CPU · 16 GB · 320 GB2,500 domains · 25,000 addresses | $200/mo$2,000/yrbackups +$24/mo | $240/mo$2,400/yrbackups +$29/mo | $280/mo$2,800/yrbackups +$34/mo |
| Enterprise8 CPU · 32 GB · 640 GB5,000 domains · 50,000 addresses | $360/mo$3,600/yrbackups +$48/mo | $432/mo$4,320/yrbackups +$58/mo | $504/mo$5,040/yrbackups +$68/mo |
| Enterprise Plus16 CPU · 64 GB · 1,280 GB10,000 domains · 100,000 addresses | $660/mo$6,600/yrbackups +$96/mo | $792/mo$7,920/yrbackups +$116/mo | $924/mo$9,240/yrbackups +$135/mo |
| Pack for plan | Adds | Adds | Monthly | Annual |
|---|---|---|---|---|
| Micro | +100 domains | +1,000 addresses | $12/mo | $120/yr |
| Small | +250 domains | +2,500 addresses | $25/mo | $250/yr |
| Standard | +500 domains | +5,000 addresses | $35/mo | $350/yr |
| Professional | +1,000 domains | +10,000 addresses | $55/mo | $550/yr |
| Business | +2,500 domains | +25,000 addresses | $120/mo | $1,200/yr |
| Enterprise | +5,000 domains | +50,000 addresses | $220/mo | $2,200/yr |
| Enterprise Plus | +10,000 domains | +100,000 addresses | $400/mo | $4,000/yr |
Add capacity automatically. Each pack adds the same number of domains and email addresses as the plan itself, at the same price in every region. With Add capacity automatically switched on (the default, and you can switch it off at any time), SpamDuster adds a pack when your server goes over its limit; each pack is emailed to you and invoiced pro-rata. Domains are never refused: a domain you add is always served. Address limit: if a server is at its address limit and no pack can be added, mail for a new address is asked to try again later, so senders retry and nothing is lost; addresses that received mail in the last 30 days always get their mail. Plans can be upgraded but not downgraded.
Pay per mail server, with unlimited domains and mailboxes on every licensed server that runs a supported hosting control panel — cPanel & WHM, Plesk (Linux or Windows) or DirectAdmin. Inbound and outbound are licensed separately.
Filters the mail you receive, in front of your mail servers — on your own hardware or in your own AWS, Google Cloud or Azure account.
Filters the mail your servers send, before it leaves your network — so a hacked account can't damage your reputation.
For domains you add by hand or through the billing API, without a control panel — with or without server licences. Combine any packs.
Addresses are the ones that received mail in the last 30 days.Addresses are the ones that sent mail in the last 30 days. * Monthly with an active server licence; on their own, packs under $100 a month are yearly only.
| Inbound yearly | Inbound monthly | Outbound yearly | Outbound monthly | |
|---|---|---|---|---|
| Per mail server | $360/yr | $36/mo | $720/yr | $72/mo |
| 5 servers | $1,800/yr | $180/mo | $3,600/yr | $360/mo |
| 10 servers | $3,600/yr | $360/mo | $7,200/yr | $720/mo |
| 15 servers | $5,400/yr | $540/mo | $10,800/yr | $1,080/mo |
| 20 servers | $7,200/yr | $720/mo | $14,400/yr | $1,440/mo |
| 25 servers | $9,000/yr | $900/mo | $18,000/yr | $1,800/mo |
| 50 servers | $18,000/yr | $1,800/mo | $36,000/yr | $3,600/mo |
| 100 servers | $36,000/yr | $3,600/mo | $72,000/yr | $7,200/mo |
| 25 domains · 250 addresses | $120/yr | $12/mo* | $240/yr | $24/mo* |
| 50 domains · 500 addresses | $200/yr | $20/mo* | $400/yr | $40/mo* |
| 100 domains · 1,000 addresses | $350/yr | $35/mo* | $700/yr | $70/mo* |
| 250 domains · 2,500 addresses | $750/yr | $75/mo* | $1,500/yr | $150/mo |
| 500 domains · 5,000 addresses | $1,250/yr | $125/mo | $2,500/yr | $250/mo |
| 1,000 domains · 10,000 addresses | $2,000/yr | $200/mo | $4,000/yr | $400/mo |
* Monthly with an active server licence; on their own, packs under $100 a month are yearly only.
Prices in US dollars. Going over never stops your mail: a mail server beyond your licence can't be connected, and a domain beyond your packs can't be added, until you add more; addresses over your packs raise an alert so you can top up.
Pick a cloud plan and we'll have SpamDuster protecting your inbound mail in minutes — or talk to us about running it on-premise.
