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Thread: Kmail: how much data consumes a request to the server?

  1. #1
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    Question Kmail: how much data consumes a request to the server?

    If I am on a volume restricted UMTS/EDGE connection:
    while leaving the notebook on all day to be aware of new email with a check, let's say every 15 minutes, in absence of messages, system POP3, how much data consumes every check on the server for new mail?
    This is to understand how much does it cost me in terms of my monthly 2GB budget if I choose this method.

    Thanks for any tip, I did not find anything about it in Google. I suppose that POP in all cases should consume less then IMAP.

    Ps. The connections are using all TLS or SSL where applicable.
    Just "clicking away" security warnings about a change in repo signature ? Not able to control?
    Then please vote for
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    openSUSE should have an efficient web of trust.

  2. #2
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    Default Re: Kmail: how much data consumes a request to the server?

    You can work it out from first principles by looking at the typical packets in the POPs protocol as well as the TLS exchange, or you could use wireshark to snoop on a typical POPS exchange. The TLS exchange will cost you, unfortunately.

    My guess is around a couple of kB total per check, and then add the mail fetched where there is something.

  3. #3
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    Default Re: Kmail: how much data consumes a request to the server?

    You have roughly 68 MB per day - most phone plans only have a fraction of that and my Blackberry checks every 15 minutes. I wouldn't worry about it.

    I would, however, make sure to turn off automatic mail attachment downloads, if that's at all possible.
    Desk: AMD Phenom II X4 945 8GB RAM Radeon HD 3300 Arch Linux Xfce 4.8
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  4. #4
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    Default Re: Kmail: how much data consumes a request to the server?

    Thanks to both of you.
    @twelveeighty: unfortunately it is a PCMCIA card in my notebook (and my home, my castle and my door to my world, that's why it is naturally running on openSUSE ). So I cannot limit the download of anything....because I would have no other possibility to receive mail in a trusted environment. However the amount of mail is limited and the attachment not so much an issue (I could limit them through kmail, but up to now never had a problem with it). What is in focus is actually the cost of normal "base line" operation. To understand if I can afford the "luxury" to leave it "constant on".

    @ken_yap: thanks for the tip with wireshark. This is really very appealing. I have it installed, now guess what, it is every time the same issue: yes there is the ********** manual but the issue is the opportunity cost to find the information. It is circular I guess, once you have read a lot, you need much less time to find the info (I am really under pressure in the moment).
    If I will find the time and possibility I will try to join a linux user group here in Europe to meet maybe people "life". So they can help me to speed things up.
    But I would love to learn more about controlling the data transfer on your own PC (just in case E.T. wants to phone home and I do not want to pay for the bill )

    Thanks again for the tip.
    Just "clicking away" security warnings about a change in repo signature ? Not able to control?
    Then please vote for
    https://features.opensuse.org/312047
    openSUSE should have an efficient web of trust.

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