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faq:email12 [2011/04/30 17:11] (current)
clemens created
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 +[12] WHAT ARE THE LIMITS ON SENDING EMAIL FROM SDF?
  
 +     There are no limits on the number of messages you can send from SDF
 +     as long as it falls within the guildelines of the AUP.  That basically
 +     boils down to:  Send messages to your friends all you'd like, but 
 +     under no circumstances use the SDF mail server to send retaliatory or
 +     ​bulk/​spam email. ​ If you do this, you will lose your account ASAP.
 +
 +     ​MESSAGE SIZE:  Approximately 100MB, total size (header/​body/​attachments)
 +
 +     This has changed (increased) over the years and probably will continue
 +     to increase as pipes fatten and disk prices drop.   ​Historically it 
 +     has been as low as 1MB during the early to mid 1990s. ​ It has increased
 +     over the past few years from 5mb, 8mb, 10mb, 16mb, 20mb and 30mb.
 +
 +     MAX NUMBER OF RECIPIENTS: ​ 20 addresses.
 +
 +     This is the number of people in the To:, Cc: and Bcc: lines in your
 +     ​header that can receive a single piece of email from you.  If you are
 +     going to send email to so many people on a regular basis, we suggest
 +     the MLIST membership.
 +
 +     Some server info:
 +
 +     MAX NUMBER OF SERVERS: ​ 128
 +   
 +     We currently allow up to 128 simultaneous server connections. ​ The 
 +     ​average number of active connections we have at the time of writing
 +     this is less than 50.  What this means is that, there would have to 
 +     be over 128 connections before the server begins denying connections.
 +     Those incoming emails would not be lost, but deferred for when the 
 +     email flood dies down.  For more information about how SMTP works, ​
 +     see the previous entry for this FAQ.
 +
 +     QUEUE RUN:  60 minutes
 +
 +     When an outgoing email it deferred, it remains in the mailq queue for
 +     up to 5 days before being returned to sender. ​ Every message in the
 +     queue is retried every 60 minutes or roughly 120 times before it is
 +     ​returned to you.  For more information about how SMTP works, see the
 +     ​previous entry for this FAQ.
 +</​code>​
 +
 +[[email|back]]