Topic

Edge runtime constraints

Limits that serverless edge platforms place on deployed code, such as the absence of raw TCP sockets, which determine what network protocols the code can speak.

Current clusters

build1 publisher

Port 25 decides which email check you can actually run

An MX lookup is one DNS query proving a domain has mail servers. Confirming a specific mailbox means opening port 25 from an IP that Gmail will answer, so MailProbe ships that check only in its self-hosted build.

Publishers:dev.to

Reality

Evidence40
Adoption: Insufficient
Hype gap+10
Incentives70
Confidence55