SpamOnion Pricing

SpamOnion uses a simple pricing model.  The base cost is $5 per month per domain for basic anti-spam filtering of up to 50,000 messages.  Five quarantine boxes are included.  Additional quarantine boxes (beyond the first 5) are an additional $1/month each.  There is a $10 setup fee.

If the domain receives more than 50,000 messages in 1 month, a $5 fee is accessed for each block of 50,000 messages thereafter.

Support is via email and phone.