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I send email in background jobs where a new process is spawned for every job. Each process will attempt to open up its own smtp connection to your server. Often, if I am trying to send out multiple emails at once(>10), most of my connection requests will timeout.
Are their limits to the number of parallel connections a customer can make? Is their something I should be doing differently?
Timeouts when opening multiple smtp connections
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That shouldn't happen. Go ahead and open a support ticket, and we'll try to track down the problem with you.Comment
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This may be throttling on your side. We do not restrict number of connections, or total bandwidth, or anything else along those lines.
If you already have a ticket number, let me know what it is, and I can make sure you're taken care of. If not, I can convert this Question to a ticket. -
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Thanks for response. I did submit a ticket: http://support.sendgrid.com/requests/...
Turns out I need to be on port 587. -
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Glad to know you resolved this!
For others:
Our documentation on which SMTP Ports we support.
Our documentation on Integration with various frameworks, languages, programs, etc. -
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