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Re^4: Applying the brakes

by salva (Canon)
on May 08, 2008 at 16:44 UTC ( #685503=note: print w/replies, xml ) Need Help??


in reply to Re^3: Applying the brakes
in thread Applying the brakes

I would probably take the easy road and try a simple sort first and check how many times a given domain occurs in your proposed concurrency frame (probably 50-100). Domains occuring more than 2-3 times within a frame may be a problem as your MTA will be asking for that many concurrent connections.

Exim can take care of this kind of things. For instance it looks for all the pending mails going to the same domain and sends then in an unique connection. Read the manual!

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Re^5: Applying the brakes
by tachyon-II (Chaplain) on May 09, 2008 at 00:49 UTC

    Not my project! Given the benchmarks Exim would not be first choice MTA in a perfect world. You have to wonder if trying to send several 1000 emails to say gmail would be accepted. Certainly when I hooked thunderbird up to the POP side of it I got throttled to 3 email downloads per minute. Sure POP download if different to SMTP upload but Google for example seems to throttle anything that looks fast and automated across all their services, at least in my experience. Although I have no evidence to prove it I would be far from suprised if all the big free mail services did not throttle what might easily look on the surface like a spam bot.

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