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What does throttling do to an email address?
Some ISPs limit (throttle) the amount of email they accept from a particular sender during a specified period of time. If you try to send email above their acceptable threshold, they will reject your email resulting in a high number of bouncebacks.
How does throttling work on the SendGrid platform?
We discussed email throttling in a previous post called Email Throttling Basics, but we wanted to revisit the subject and talk a little more about how throttling works within the SendGrid platform and how it affects email sending. Some ISPs limit (throttle) the amount of email they accept from a particular sender during a specified period of time.
What happens when you try to send an email over a certain threshold?
If you try to send email above their acceptable threshold, they will reject your email resulting in a high number of bouncebacks. This is email throttling and is also referred to as a “deferral.” This refusal to deliver your mail is usually temporary, but it depends on the situation.
What happens if you send email to a receiving server?
The receiving server doesn’t recognize your IP address or addresses and thinks you’re sending spam. This is why warming up is so important, so they know who you are. (More on this below, or check out our blog post on the topic.) The receiving server doesn’t have any open ports to receive email. The recipient’s mailbox if full.
What’s the best way to schedule email deployment?
Schedule your emails to deploy over an extended period of time. Segment your emails by domain or split your lists into multiple parts–if you want to start off on the right foot, consider separating your marketing and transactional email traffic to keep their reputations independent.
Why is there a message throttling limit on exchange?
These limits work together to protect an Exchange server from being overwhelmed by accepting and delivering messages. Although a large backlog of messages and connections may be waiting to be processed, the message throttling limits enable the Exchange server to process the messages and connections in an orderly manner.