10 Reasons Why you Might Not Be Receiving Emails in 2025

Email remains an essential communication tool in both personal and professional settings but despite continuous advancements in technology, a range of issues can still disrupt the smooth delivery of emails. 

With new challenges emerging each year, it’s important to stay informed about the factors that could affect email delivery. After reviewing the latest insights on email trends and challenges, several emerging reasons for email delivery issues have been identified for 2025:

1. Delayed Delivery Due to Traffic

While email is generally fast, high server traffic or delays in routing between servers can occasionally cause lags. This is more common during peak times or when large attachments are involved.

2. Spam Filters Are Stricter Than Ever

Spam filters continue to evolve, often using hyper-personalisation and AI to assess email content. Legitimate emails may be flagged if they lack engagement signals or appear suspicious. Check your spam folder regularly and whitelist trusted senders.

3. Authentication Failures

Email providers increasingly rely on protocols like SPF, DKIM and DMARC to verify sender identity. Emails may be blocked if the sender’s server isn’t properly configured for these standards or if new authentication requirements are unmet.

4. Organisational Blocks on Attachments

Attachments containing macros or executable files are often flagged as potential threats. Additionally, organisations may restrict certain types of interactive elements, such as AMP for Email, if they aren’t compatible with their systems. Secure file-sharing platforms are a good alternative for sharing large or sensitive files.

5. Email Address Typos

This simple error remains a common issue. A single misplaced letter or symbol can send emails astray. Double-check the address you’re providing and ask senders to do the same.

6. AI-Powered Inbox Sorting

Advanced AI tools increasingly personalise email inboxes by categorising messages into folders like Promotions or Updates. Emails deemed less relevant based on interaction history may not reach the primary inbox, requiring manual review of categorised folders. Interested in How AI Can Help with Email Overload? Read our blog here.

7. Interactive and AMP Email Challenges

While interactive and AMP emails improve user engagement, they sometimes face compatibility issues with older email clients or strict organisational filters. This can cause delivery problems or result in emails being stripped of their interactive features.

8. Data Volume and Cloud Integration

As emails become more data-heavy with embedded media and interactive elements, delivery failures may occur if servers are not optimised to handle these requirements. Cloud technologies are increasingly relied upon to manage these complexities.

9. Privacy-Centric Email Strategies

With increasing privacy concerns and regulations like GDPR, emails that do not comply with privacy standards may be blocked or filtered out. Ensure your emails adhere to privacy regulations to avoid delivery issues.

10. Dark Mode Optimisation

Many users prefer dark mode for reading emails. Emails not optimised for dark mode can appear broken or unreadable, leading to higher spam complaints or unsubscribes. Ensure your emails are visually appealing in both light and dark modes.

Troubleshooting Tips:

• Check your spam and junk folders.
• Ensure your email account isn’t approaching its storage limit.
• Verify the sender’s email address is correct.
• Stay up-to-date with new email technologies, including accessibility and privacy-focused tools.
• Contact Grant McGregor for expert IT support if the problem persists. As a trusted Managed Service Provider, we can diagnose and resolve email issues quickly, ensuring your communications remain seamless and secure.

What next?

Call us: 0808 164 4142 

Message us: https://www.grantmcgregor.co.uk/contact-us