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email servers generally aren't publicly accessible, rather they're only accessible to authorized (registered) users Yes, sending email requires authorization t
by kyrias 14y ago
email servers generally aren't publicly accessible, rather they're only accessible to authorized (registered) users
Yes, sending email requires authorization to the SMTP server but MTA to MTA communications (as in when your mailserver actually sends your email to the recipients mail server) are clear text and can easily be intercepted.
The difference between telephone calls and email is that you generally don't have access to the things you need to listen in on a telephone call, but email you only need to have access to one of the routers that it's routed through
- bradleyjg 14y agoThe SMTP protocol is used both from client to server and from server to server. RFC 3207 (2002) complaint MTAs communicate with each other over a TLS (i.e. encrypted) connection. Complaint MTAs include: sendmail (>= 8.11), postfix (>= 2.2), MS Exchange (>= 5.5). Patches have existed for qmail to add support since 1.01, though they aren't in the main distribution for reasons that I'm sure make sense to djb.
- deleted 14y ago[deleted]
- deleted 14y ago[deleted]
- Genmutant 14y agoBut many modern telephone calls are not really on the old telephone line, but get converted to VOIP calls somewhere along the line.