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56K, ISDN
64/128kbps, DSL 256/512Kbps, ADSL
Why is the speed of broadcasting |
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Inconsistent mailing speed are due to various factors from line (static's), Internet peak-hour congestion, throughput, sender or ISP mail server busy, using of non dedicated mail server, sharing of mail server with other functions/users, poor maintenance, etc. Sender mail server program used (single thread) or multi-thread for Extended STMP (ESTMP) mail server, server microprocessor capability/capacity and how many companies or users sharing the same network/cable Internet connection, etc. are just some of the contributing factors to inconsistent emailing speed. You can PING the mail servers or if you are using your own mail server PING the Internet to determine connection throughput. Throughput, bandwidth? Are the outgoing and incoming datagram Bits-Bytes between your computer, ISP connection and the Internet network.
What is the speed or how many
emails MailsBroadcast send emails continuously in groups of 50 (default setting) or depending on your settings to your ISP mail server or to your mail server program for delivery--as fast as they can cache them for distribution. Therefore, the speed of sending emails will be affected by some of these factors: (a) You connection speed -- ie: 56.6 dial-up, 64/128 ISDN 256/512 DSL/ADSL, Cable connection, etc. (b) The upload speed allow by your ISPs, you may be connected at 512 with an ADSL line but your ISP may not allowed you to upload at that speed. |
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(d) Your ISP mail server--under maintenance, busy peak hour, etc.
Broadcasting speed tested under ideal condition with a 56.6 dial-up line may send above 850 TEXT messages (5 Kb file size) and more than 420 HTML messages (25 Kb file size) was "clocked" being delivered to an ISP mail server. And above 9,000 TEXT messages (5 Kb file size) and more than 5,000 HTML messages (25 Kb file size) was "clocked" being delivered to an ISP mail server with a 64 Kbps ISDN connection. A 512 kbps broadband connection does not mean having access to the same up-load speed to the mail server, even with a hi-speed cable connection--throughput--depends on how many machine are connected to it within your neighborhood. ISPs may also limit your access to their mail server by time or quantity of mails sent. DSL, ADSL, Network or Cable connections are also subject to the same throughput, up-load speed, congestion problem or number of users/companies connected at the same time during peak hours and sharing the same cable Network. Different ISP provide different up-load and download speed--meaning that having a 56K V90/V92, ISDN 64/128kbps, DSL 256/512Kbps, ADSL 12/480Mbps, Network T1 (1.544Mbps) Cable etc., could represent only the download speed and up-load speed could be 20-50% lower, check it out with your ISPs. |
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If you are using your own mail server, it depends on whether it is a Dedicated Mail Server, shared with others, perform other functions, optimal maintenance, the mail server program used (single or multi threads), speed of microprocessor and Internet connection, type of connection, etc. are all contributing factors that affect speed of mailing.
For more info
about speed of
broadcasting email
MaxMtu If it is set too large for routers, it is then fragmented into packet size and can take double the amount of time it takes to send a single packet.
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