--- title: "Email Marketing Testing: HubSpot San Diego Marketing Event - Jen Bergren" description: Earlier this year I attended a very interesting meeting of SD Inbound's HubSpot User Group, about the importance of testing in email marketing. Shelby Heath from Campaign Creators gave the presentation. image: https://www.jenbergren.com/hubfs/Imported_Blog_Media/IMG_0500-e1525110345335-Jun-01-2023-11-19-45-2590-PM.jpg --- [![JenBergren_LogoWhite](https://www.jenbergren.com/hs-fs/hubfs/JenBergren_LogoWhite.png?width=200&height=50&name=JenBergren_LogoWhite.png "JenBergren_LogoWhite")](https://www.jenbergren.com/) [![JenBergren_LogoPurple-200px](https://www.jenbergren.com/hs-fs/hubfs/Logos/JenBergren_LogoPurple-200px.png?width=200&height=50&name=JenBergren_LogoPurple-200px.png "JenBergren_LogoPurple-200px")](https://www.jenbergren.com/) - [About](https://www.jenbergren.com/about) - [Courses](https://www.jenbergren.com/courses) - [Templates](https://www.jenbergren.com/templates) - [RevOps Book](https://www.jenbergren.com/book-what-is-revops) - Resources - [Blog](https://www.jenbergren.com/blog) - [Speaking](https://www.jenbergren.com/speaking) - [Articles](https://www.jenbergren.com/articles) - [Generalist Newsletter](https://jenbergren.substack.com/) - [Book Reviews](https://medium.com/@JenBergren) - [Curated Resources](https://www.jenbergren.com/resources) - [Contact](https://www.jenbergren.com/contact) [Education](https://www.jenbergren.com/blog/tag/education), [Event](https://www.jenbergren.com/blog/tag/event), [Marketing](https://www.jenbergren.com/blog/tag/marketing), [HubSpot](https://www.jenbergren.com/blog/tag/hubspot)   |   6 Min Read # Email Marketing Testing: HubSpot San Diego Marketing Event ![Picture of Jen Bergren](https://www.jenbergren.com/hubfs/Jen_0954_purple_sq-50px.jpg) [Written by Jen Bergren](https://www.jenbergren.com/blog/author/jen-bergren) Earlier this year I attended a very interesting meeting of [SD Inbound’s ](https://www.sdinboundmarketing.com/events#all)HubSpot User Group. Shelby Heath from [Campaign Creators](https://www.campaigncreators.com/)gave a presentation about the importance of testing in email marketing. **Key takeaways** - Mobile optimization is very important. Eighty-one percent of smartphone users say email is the most popular activity on their phone. 54 percent of all emails are opened on mobile. - Email has an ROI of 4300 percent – but it requires serious work, thinking bigger than just clicks and opens, and thinking of each email as a vehicle for driving growth. Results take time and require time spent. - Seventy-three percent of B2B leads are not sales-ready. Educate these leads, build trust, and stay top of mind using email marketing. - The attention ratio is: as the number of links in an email increases, the number of clicks decreases. Another part of this ratio states that as the number of images increases, the click-through rate decreases. This is especially true for B2B email recipients who prefer 1 to 0 images in order to convert (newsletters may be the exception). These figures prove the concept of decision overwhelm or analysis paralysis. - Your deliverability of marketing emails is defined as how successful you are at getting your emails into recipients’ inboxes and not bounced or caught in spam filters. Deliverability affects all the email for your domain. Even your incoming mail can be affected if your company has a bad reputation as a result of spammy email marketing sent from your domain. - Clean up your list to get rid of bounces and people who have never opened an email. This will increase your click and open rate immediately. It also improves your email reputation with the ISPs and ESPs. Email lists decay 23% a year anyway because people change jobs, so don’t be afraid to prune your list. Thanks to my friend [Mary](http://maryplus.com/) for taking my photo! ![san diego email marketing hubspot](https://www.jenbergren.com/hs-fs/hubfs/Imported_Blog_Media/IMG_0500-e1525110345335-Jun-01-2023-11-19-42-2901-PM.jpg?width=638&height=442&name=IMG_0500-e1525110345335-Jun-01-2023-11-19-42-2901-PM.jpg) *I had a week-long break from my [MBA classes](https://jenbergren.com/category/mba/) so I hope to catch up on a few blog posts, in addition to creating overviews of the most recent classes I finished.* Topics:   [Education](https://www.jenbergren.com/blog/tag/education), [Event](https://www.jenbergren.com/blog/tag/event), [Marketing](https://www.jenbergren.com/blog/tag/marketing), [HubSpot](https://www.jenbergren.com/blog/tag/hubspot) ## Related Articles [RevOps](https://www.jenbergren.com/blog/tag/revops) [Event](https://www.jenbergren.com/blog/tag/event) ### [Podcast: Decoding Revenue Operations](https://www.jenbergren.com/blog/podcast-decoding-revenue-operations) Thank you to Trygve Olsen and Dave Meyer for inviting me to the Dial it In Podcast from Bizzyweb to discuss revenue operations (RevOps)! [![Picture of Jen Bergren](https://www.jenbergren.com/hubfs/Jen_0954_purple_sq-50px.jpg) Jen Bergren](https://www.jenbergren.com/blog/author/jen-bergren) [RevOps](https://www.jenbergren.com/blog/tag/revops) [Education](https://www.jenbergren.com/blog/tag/education) ### [MOps-Apalooza 2025 Conference Part 2](https://www.jenbergren.com/blog/mops-apalooza-2025-conference-part-2) In November, I attended and moderated a panel at the MOps-Apalooza conference from the marketingops.com community. This post covers some of the sessions I attended, as summarized for LinkedIn posts ... [![Picture of Jen Bergren](https://www.jenbergren.com/hubfs/Jen_0954_purple_sq-50px.jpg) Jen Bergren](https://www.jenbergren.com/blog/author/jen-bergren) [RevOps](https://www.jenbergren.com/blog/tag/revops) [Education](https://www.jenbergren.com/blog/tag/education) ### [MOps-Apalooza 2025 Conference Part 1](https://www.jenbergren.com/blog/mops-apalooza-2025-conference-part-1) In November, I attended and moderated a panel at the MOps-Apalooza conference from the marketingops.com community. This post covers some of the sessions I attended, as summarized for LinkedIn posts ... [![Picture of Jen Bergren](https://www.jenbergren.com/hubfs/Jen_0954_purple_sq-50px.jpg) Jen Bergren](https://www.jenbergren.com/blog/author/jen-bergren) Copyright @2026 Developed by Remotish Agency ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Jen Bergren", "url" : "https://www.jenbergren.com/blog/author/jen-bergren" }, "dateModified" : "2023-08-14T20:10:35.365Z", "datePublished" : "2018-04-30T20:09:00.000Z", "headline" : "Email Marketing Testing: HubSpot San Diego Marketing Event - Jen Bergren", "image" : [ "https://www.jenbergren.com/hubfs/Imported_Blog_Media/IMG_0500-e1525110345335-Jun-01-2023-11-19-45-2590-PM.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.jenbergren.com/blog/email-marketing-testing-hubspot-san-diego-marketing-event", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.jenbergren.com/hubfs/Logos/JenBergren_LogoWhite-200px.png" }, "name" : "Jen Bergren" } } ```