Why is my Klaviyo shared IP having Gmail deliverability issues?

Email marketer from SendGrid explains that IP address reputation is crucial for deliverability. A shared IP's reputation is affected by all its users, increasing the risk of deliverability issues. Monitor your reputation with tools such as Google Postmaster Tools.

Email marketer from Reddit explains that a sudden drop in Gmail deliverability on Klaviyo's shared IP could stem from a recent change in Gmail's spam filters, which are now prioritizing user engagement signals more heavily. It's also possible that the shared IP's reputation has been affected by other users' sending behavior.

Email marketer from Reddit mentions that Shared IP addresses are more susceptible to deliverability fluctuations due to the activities of other senders on the same IP. If one sender engages in poor practices, it can negatively impact the reputation of the entire IP, affecting deliverability for all users sharing it.

Email marketer from Neil Patel's website explains that improving sender reputation, authenticating your emails with SPF, DKIM, and DMARC, and consistently cleaning your email lists are crucial steps to improve deliverability to Gmail. He also recommends monitoring your sender score and promptly addressing any issues.

Email marketer from Email Uplers shares that shared IPs can face deliverability issues due to the actions of other users on the same IP. They suggest monitoring your sender reputation, ensuring proper email authentication, and maintaining high engagement rates to mitigate these risks. Also warming up your IP can help.

Email marketer from StackOverflow explains that DKIM is a digital signature added to email headers that allows receiving mail servers to verify that the email was indeed sent from the authorized domain and hasn't been tampered with during transit. Implementing DKIM correctly can significantly improve email deliverability to Gmail.

Email marketer from Gmass shares that emails on a shared IP are more likely to be flagged, particularly by Gmail, especially if other users on the IP are engaging in practices that harm the IP’s reputation. Authentication and reputation matter.

Expert from Email Geeks explains that Gmail doesn’t work on IP as much as it works on domain. It could be that the domain has been flagged by Gmail and that recipient actions are telling Google's machine learning engine that they don’t want the mail, causing it to be put in the bulk folder. Domains inside the body of the message also have a reputation, so a switch to a CDN with a bad reputation could cause deliverability issues.

Expert from Word to the Wise (Laura Atkins) explains that shared IPs can present deliverability challenges because the reputation is shared among multiple users. If other users on the shared IP engage in practices that harm the IP's reputation (e.g., sending spam, having high complaint rates), it can negatively impact the deliverability of all users on that IP, including those with good sending practices. Gmail considers IP reputation as one factor and may filter email accordingly.

Expert from Email Geeks shares their experience where a shared domain reputation issue at Gmail, specifically with shared return-path (SPF) domains being abused by a few clients, affected all others on that domain.

Expert from Spamresource explains that a shared IP's reputation is influenced by the sending behavior of all its users, so if others on the same IP engage in practices that lead to low engagement or spam complaints, it can negatively impact your deliverability, irrespective of your own sending practices.

Documentation from RFC explains that SPF records prevent spammers from sending messages with forged 'from' addresses at your domain. Recipients can refer to the SPF record to determine whether a message purporting to be from your domain comes from an authorized mail server.

Documentation from Google outlines best practices for bulk email senders. It emphasizes the importance of authenticating emails (SPF, DKIM, DMARC), maintaining low spam complaint rates, and providing easy unsubscribe options to ensure emails reach recipients' inboxes, especially for Gmail users.

Documentation from Klaviyo states that deliverability issues on a shared IP can arise from other users' sending practices. Klaviyo recommends ensuring your sending domain is properly authenticated, maintaining a clean list, and actively monitoring deliverability metrics to identify and address any issues promptly.