What could be causing Gmail deliverability issues for a bulk sender using Salesforce Marketing Cloud?

Email marketer from Reddit explains that the email content can trigger spam filters. Using excessive exclamation points, spammy keywords, or deceptive subject lines can lead to deliverability issues.

Email marketer from Neil Patel explains that sender reputation is critical for deliverability. Factors like IP address history, domain reputation, and spam complaints directly influence whether Gmail places your emails in the inbox or spam folder.

Email marketer from Litmus explains that failing to properly segment email lists can lead to low engagement and higher spam complaints, impacting deliverability. Proper segmentation ensures that users receive relevant content.

Email marketer from Stack Overflow shares that sending too many emails too frequently can overwhelm recipients and lead to increased spam complaints. Segmenting lists and tailoring sending frequency to user engagement is important.

Email marketer from Sendinblue explains the importance of list hygiene. Sending to old, unengaged, or invalid email addresses can significantly harm your sender reputation and lead to deliverability issues.

Email marketer from Mailjet shares that proper email authentication (SPF, DKIM, DMARC) is essential. Gmail uses these protocols to verify that the sender is legitimate and authorized to send emails on behalf of the domain.

Email marketer from Gmass explains that making it difficult for recipients to unsubscribe can lead to higher spam complaints. Having a clear and easy unsubscribe process helps maintain a healthy sender reputation.

Email marketer from Email on Acid explains that poorly designed emails with broken HTML or large image sizes can negatively impact deliverability. Ensuring emails are properly coded and optimized for different devices is crucial.

Email marketer from MarketingProfs explains that drastically changing sending volumes can raise red flags with Gmail and other ISPs. Maintaining a consistent sending pattern is recommended.

Expert from Word to the Wise (Laura Atkins) explains that the quality of your mailing list is paramount. Poor list hygiene, including sending to invalid or unengaged addresses, is a common cause of deliverability problems.

Expert from Word to the Wise (Laura Atkins) explains that monitoring your sending reputation using tools like Google Postmaster Tools is critical, as is implementing complaint feedback loops to remove complainants.

Expert from Spam Resource explains that not having SPF, DKIM, and DMARC properly configured will cause deliverability issues. They also state that DMARC reporting should be set up to actively monitor who is sending on your behalf.

Expert from Email Geeks suggests pushing on SFMC to make sure any issues/bugs with bounce handling get logged as bugs so they get queued up for fixing.

Expert from Email Geeks explains that if the sends are from Salesforce Marketing Cloud and are shared IP sends or shared domain sends (i.e. the client doesn't fully have Sender Authentication Package implemented), it could be a shared reputation or platform issue. If a fully implemented SAP domain and dedicated IPs, then it's likely not some platform-related issue and is possibly specifically a reputation issue for your IP/domain. Al is not aware of anything broad/globally going on at Gmail - there was a recent bounce glitch but it was a one off for a few hours, not a days/weeks thing.

Expert from Email Geeks suggests that at that level of complexity there's sometimes multiple business units involved and to make sure they all have SAP assigned properly. Run an email from each and make sure the bounce (return path) domain is truly the client's custom domain and not an SFMC default *.<http://exacttarget.com|exacttarget.com> - that'd rule out platform/shared resource issue.

Documentation from Google explains that Google Postmaster Tools provides data about your sending reputation, spam rate, and other key metrics. Monitoring these metrics can help identify and address deliverability problems.

Documentation from RFC explains that Gmail uses feedback loops (FBLs) to identify senders who are generating excessive spam complaints. Implementing an FBL allows you to remove users who are marking your emails as spam.

Documentation from Salesforce shares that improperly warming up dedicated IPs can hurt deliverability. New IPs need to be warmed up gradually to build a positive sending reputation with Gmail.

Documentation from DMARC.org explains how DMARC policies should be set to 'quarantine' or 'reject' to protect your domain from spoofing, enhancing trust and deliverability. A 'none' policy provides no protection.

Documentation from Salesforce describes the Sender Authentication Package (SAP) in SFMC. Not fully implementing SAP can lead to deliverability problems as it affects brand alignment and authentication.