Outbound port 25, abuse prevention, and acceptable use
Outbound TCP port 25 is blocked by default to reduce spam and protect network reputation. This does not prevent applications from using authenticated mail-submission services on ports such as 465 or 587 when permitted by that provider.
If direct SMTP delivery is genuinely required, open a support ticket describing the application, domain, expected volume, opt-in process, bounce handling, and abuse controls. Approval is not guaranteed.
Spam, phishing, malware, unauthorised scanning, credential theft, and activity that threatens other systems are prohibited. VMBargain may restrict or suspend a VM to contain abuse. See the Acceptable Use Policy.