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khurram bhatti wrote: |
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> well I have very strange sendmail behaviour some times it sends 200+ emails/sec |
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> and some times down to 30 emails/sec, and can't figure it out what's the issue |
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> ! |
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> using sendmail for mailing list purpose |
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> |
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Ah, this is a very different question from the one you originally asked. |
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30 mails/sec over the course of a day is incredibly good performance. |
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But seeing that over very short intervals especially when sending out |
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10k or less emails in not so good. |
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I have a general idea of what the problem might be, but you may have to |
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Google the details yourself. It's my understanding that sendmail does |
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something similar to this: |
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http://www.postfix.org/CONNECTION_CACHE_README.html |
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And something like this as well. |
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http://www.postfix.org/TUNING_README.html#rope |
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Sorry I'm much more familiar with Postfix and qmail internals than |
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Sendmail or I'd have given you better links. I'd start looking around at |
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how Sendmail does it's queuing and tracking which domains you deliver |
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fastest to and which are slower. Also look at your mail list software's |
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docs because there are usually specific tuning data for each MTA. Mail |
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lists are a bit odd because you're sending the same email X times so you |
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can do things with them that you can't do with other mail. And most of |
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the weird performance hacks are MTA specific. |
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kashani |
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-- |
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