send massive emails

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9 months 3 days ago #159633 by elopez59
elopez59 created the topic: send massive emails
I use a external server mail, i need send 5000 emails in one day, in a previous version, 500 email were sent in 2 minutes, now in the last version, 500 emails were sent in 55 minutes. Please help me.!
Eduardo Lopez, UCR, COSTA RICA, THANK YOU!

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9 months 2 days ago #159640 by DenisChenu
DenisChenu replied the topic: send massive emails

elopez59 wrote: I use a external server mail, i need send 5000 emails in one day, in a previous version, 500 email were sent in 2 minutes, now in the last version, 500 emails were sent in 55 minutes.

Nothing in LimeSurvey can explain such difference .

BUT : What LimeSurvey do :
1. Make the email body/subject …
2. Tell to the system (mail/smtp …) to send the email
3. Wait for answer (OK/Not OK)
4. Got to 1

If you use mail function : the 2 to 3 take less than 0.01 seconds. If you use smtp fucntion with a remote server : it can take a lot of time.

With mail function : MY server receive the email and put it in "waiting list", and send it … sometimes some hour after (when i send 10 000 mail). Because some server (orange/wanadoo for example) don't accept more than one email by second from the same server …

Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member, professional service on demand (or search sondages pro).
An error happen ? Before make a new topic : remind the Debug mode .
The following user(s) said Thank You: LouisGac

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