Just received this from SendGrid. They are saying the CANNOT switch IP addresses for senders and have told us that the impact others are having on our ability to send emails should just be tolerated. This is unacceptable to anyone running a business. We are trying to send notifications for password resets and user generated events (we aren’t spamming anything) and we cannot get our emails through.
DO NOT USE SEND GRID!
SendGrid response to being asked to move our IP address.
Sep 10, 2020, 11:59 AM PDT
Thanks for reaching out to us and reporting this IP blacklisting. When sending email through an account that is under the Free or Essentials pricing package, your account will be utilizing a shared IP pool. Being grouped with others in a pool of shared IP’s can offer several benefits, especially if you are only sending a moderate amount of email.
Although there are benefits to sending on shared IP’s, there are also risks which can sometimes produce unintended negative consequences. If some of these users display poor sending habits or behavior, it can negatively affect others (you) within the group.
There are many different blacklists, and not all are created equal. Blacklistings are usually temporary, but due to the nature of how shared IP sending works, they do come and go. The impact to an email program can be extremely varied usually depending on what domains you’re trying to send to. For example, blacklisted IPs could have little to no negative impact on delivery for senders focusing their traffic to larger inbox providers, while sending to smaller domains or inboxes could have a higher impact.
Please know that SendGrid is unable to move accounts to different shared IP pools, but our systems will programmatically move accounts to different pools based on reputation and internal logic.
SendGrid is also unable to move IPs in and out of pools because it gives the impression of Snowshoe Spamming; A strategy where spam is propagated over several domains and IP addresses to weaken reputation metrics and avoid filters, which can make things worse. We do however proactively monitor our shared IP pools and attempt to mitigate all blacklisted IP’s as soon as possible.
Here is some additional documentation regarding blacklists. If you have any other inquiries regarding this matter please feel free to reach back to us.
Please check the links below for more detailed information regarding our delivery process:
- SendGrid’s 2020 Email Deliverability Guide
- Email ROI Calculator
- How to setup Sender Authentication
- Warming up IP Address - for the PRO plans with new dedicated IP
- Deliverability - Best practices
- Top 10 Tips and Tricks to Stay Out of the Spam Folder - 2017
[name removed] Twilio Technical Support Engineer