On Aug 29, 2013, at 3:14 PM, Wietse Venema wrote: >> It's standard SMTP over tcp, typically with STARTTLS and AUTH. I >> imagine the udp entry is a historical artifact. > > Plaintext SMTP over UDP would require that the MTA invents major > parts of TCP, including the parts that deal with packet loss, > out-of-order arrival, and flow control.
Good. Then I won't reconfigure my firewall until further notice... -- Glenn English
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