Outgoing email on port 25 is filtered on new servers to prevent spam and abuse. You can ask for port 25 to be opened with the SMTP port 25 unblock request form. Our team reviews each request.
You can ask 31 days after the first paid order on your account. Requests sent earlier are not approved.
Who can ask
The 31 days count from the first paid order on your account, not from the order of a particular server. Upgrades, plan changes, cancellations and refunds don't change the date. The rule is the same for every account, to keep spam off the network.
What to fill in on the form
Hostname.
Your server's hostname is shown in the client area:
Primary IPv4 address.
The public IP address of the server, shown on its page and in the New Product Login Information email.
Email use case.
Choose what the server will send: Transactional email (order confirmations, password resets, billing notices), System alerts (messages from apps and monitoring), Internal corporate mail (messages to your team or partners), or Other, with a description in your own words.
Email volume.
Estimate how many emails the server will send per hour and per day. These numbers help us spot unusual sending.
Before you send email
Set up reverse DNS for the server's IP address, so that other mail servers trust your messages. The steps are in Reverse DNS setup in LumaDock.