Do images in emails affect deliverability?

Email marketer on an Email Marketing Forum mentions that hosting images on a reputable server is important as poor image hosting can indirectly affect deliverability if the server is blacklisted. They recommend using reliable CDNs or ESPs for image hosting.

Email marketer on Quora says an imbalance between text and images, especially with too little text, can flag emails as spam. It's important to maintain a healthy text-to-image ratio.

Email marketer from Campaign Monitor advises using images strategically and sparingly, as well as making sure to optimise image size to ensure that image heavy emails do not impact deliverability.

Email marketer from Email Geeks shares advice to compress images, include alt text, and minimize image usage, suggesting that image weight might still matter for some corporate mail servers and heavier images affect deliverability.

Email marketer on Reddit responds that very large images can contribute to deliverability problems by slowing down loading times and potentially triggering spam filters. Optimizing and compressing images is crucial.

Email marketer from Sendinblue explains that the size of images can affect email loading times, and slow loading times can lead to lower engagement rates, which can indirectly affect deliverability. They recommend optimizing images for web use.

Email marketer from Litmus shares how image blocking in email clients can affect the display of emails, potentially reducing engagement if important information is conveyed through images alone. They recommend using alt text and ensuring emails are readable even with images disabled.

Email marketer from ActiveCampaign shares guidance on designing emails with deliverability in mind, recommending using a balance of text and images, and ensuring that images are optimized for web viewing to avoid triggering spam filters.

Email marketer on StackExchange notes that using background images heavily can sometimes trigger spam filters, particularly if the text-to-image ratio is low. They suggest using background images sparingly and ensuring sufficient text content.

Email marketer from Email on Acid stresses the importance of optimizing images for email by compressing them, using appropriate file formats (JPEG for photos, PNG for graphics), and adding alt text. Optimizing images will reduce email size and improve deliverability.

Email marketer from Mailjet explains that while images themselves don't directly cause deliverability issues, large image file sizes can negatively impact loading times and user experience, indirectly affecting engagement and potentially deliverability. Optimizing images is recommended.

Expert from Word to the Wise explains that poorly designed emails can be flagged as spam, including emails with large images that have not been optimised which slow loading times. Laura recommends optimising images and balancing them with enough text.

Expert from Spam Resource explains that while images themselves aren't directly flagged as spam, using excessive or large images can negatively impact deliverability. They recommend optimizing images and maintaining a good text-to-image ratio.

Expert from Email Geeks explains that images do not impact email deliverability.

Documentation from HubSpot Support advises on best practices for improving email deliverability, including image optimisation. They emphasize reducing image file sizes, as large images can lead to longer loading times and a poor subscriber experience, both of which can negatively affect deliverability.

Documentation from Mozilla Developer Network emphasizes the importance of alt text for images to provide accessibility for users who can't see them, and to ensure a usable experience if images are not loading. While not directly about deliverability, using alt text is a best practice for accessible emails.

Documentation from Google Workspace Admin Help advises optimizing images by compressing them and ensuring they are appropriately sized to improve Gmail deliverability. Large images can contribute to emails being flagged as spam.

Documentation from Microsoft Learn outlines the image requirements for optimal viewing in Outlook, including considerations for image size and format. Although it doesn't directly address deliverability, it implies that adhering to these guidelines can prevent rendering issues that might impact user experience.