Hi Utomo, On Sun, 30 Jun 2002 21:18:07 -0700, you wrote: > I guess almost all of us at least once getting problem from non reliable > email.
Yep... or not at all. My old ISP in the UK are dropping mail all the time, with no explanation. > We can have problem when sending email (to POP or WEBmail), and we did > not sure if the email is delivered without problem or not. (Yes I know > that we can set delivery receipt and read receipt), but many people did > not send the read receipt confirmation, and webamil cannot indicate real > status. You can use delivery, and receipt confirmation, but only delivery is actually respoonded too all the time. Receipt confirmation can be skipped by the user. If you have access to the mail server, you can always watch the log files... I do that all the time, but that is part of my job ;) > Sometimes our email need very long time to arrive in the recipients > mailbox, theoritically the email delivered within second, but sometimes > it needs one hour or one day. Sometimes if a mail server is busy, or a direct route cannot be established, it is queued for up to 4 days (depending on setup), where the mail server tries every couple of hours. > If our mailserver mave many routing, and one of them are down sometimes > we cannot get our email, eventough the server still connected to the > Internet. If your mail server has several routes, that in theory *should* increase the chances of it being delivered, providing everything is mapped, and setup correctly with DNS servers, and the routers. > I think this unreliable situation is not good in the fast information > and communication era. > Do you have comment on this ? It is possible to have dual mail servers, one just used as a backup for the other. When the main server is unreachable, it queues the mail until the main server comes back alive, or is reachable again. When it detects it can be reached again, it spools all the mail off to it. This is done via multiple MX entries in the DNS table... like this: mydomain.com. IN MX 5 mail.mydomain.com. mydomain.com. IN MX 10 mail.myfriendlyisp.com. If mail fails to reach mail.mydomain.com, then the DNS servers say that mail.myfriendlyisp.com is authorised to queue mail for you. That way, the mail gets to you, and doesn't end up sitting on the end users system. You still have the same issue that if the mail server is not reachable for a long period of time, chances are, the mail will bounce. -- Jonathan Angliss ([EMAIL PROTECTED]) ________________________________________________________ Current Ver: 1.60q FAQ : http://faq.thebat.dutaint.com Unsubscribe: mailto:[EMAIL PROTECTED] Archives : http://tbudl.thebat.dutaint.com Moderators : mailto:[EMAIL PROTECTED] TBTech List: mailto:[EMAIL PROTECTED] Bug Reports: https://www.ritlabs.com/bt/
