According to the study Email Use Reconsidered in Health Professions Education: Viewpoint, “Email has become a popular means of communication in the past 40 years, with more than 200 billion emails sent each day worldwide.” However, even the most reliable email servers can experience downtime for various reasons, such as maintenance, upgrades, or unforeseen technical issues. While downtime is inevitable, proper preparation can minimize its impact and ensure continuity in communication.
What is email server downtime?
Email downtime refers to a period when an organization’s email server, the system responsible for sending, receiving, and storing emails, is unavailable or experiencing disruptions. During downtime, users may be unable to access their email accounts, send or receive emails, or perform any actions related to email communication.
According to a study by Dell, Why email fails, while natural and external events can disrupt systems, “email systems are more frequently brought down by technological failures and human error.” This illustrates that downtime is often the result of internal system weaknesses rather than rare, large-scale incidents.
One causal factor is technical failures within the email infrastructure. The study found that enterprise email systems are vulnerable to issues such as “configuration errors, loss of network access, database corruption, SAN failures, and viruses.” These problems can prevent the server from processing or delivering emails, leading to partial or complete service outages.
Another contributor is human error, particularly in system configuration and maintenance. Misconfigured settings, incorrect updates, or improper handling of infrastructure can unintentionally disrupt email services.
How to prepare for an email downtime
Preparing for email server downtime is essential because outages can happen unexpectedly, and recovery may take time. As noted in the article, How to prepare your business for a network outage, “services may not be available if there is a network outage… [and] this may take time”, making proactive planning critical for maintaining business operations.
The article advises businesses to “not rely on any single form of communication… as it could become unavailable," which is especially relevant for email-dependent organizations.
Instead, having alternative communication methods, such as phone systems, messaging platforms, or backup email providers, ensures continuity when email servers go down.
Another preparation step is building redundancy into your systems. Organizations are encouraged to diversify service providers where possible. For example, using different providers for internet or communication services can reduce the risk of a single point of failure disrupting all operations.
Additionally, the article recommends backups, advising businesses to store important information online and keep physical copies of key data, including contact details for staff, clients, and vendors. In the context of email downtime, this ensures that critical communication can continue even if inbox access is temporarily lost.
Preparation should also extend to people, not just systems. Businesses should ensure staff are aware of and involved in business continuity planning, including knowing what to do during an outage. Clear roles and response plans can significantly reduce confusion and downtime impact.
See also: HIPAA Compliant Email: The Definitive Guide
How to prevent a server downtime
According to the study Disaster recovery solutions for IT systems: A Systematic mapping study, preventing email server downtime requires a combination of proactive planning, resilient infrastructure, and continuous system monitoring. Key strategies include the following:
Implement disaster recovery (DR) solutions
The study shows that keeping systems running during failures comes down to having the right safeguards in place, specifically, reliable backup plans like disaster recovery solutions that help systems stay up and running even when something goes wrong.
Design for high availability
Modern IT systems are expected to run continuously, with research noting that “IT services have become an essential part of everyday life and must be available 24/7.” To achieve this, highly available systems aim for “less than 5.25 minutes of downtime per year”, often referred to as “five nines” availability.
Use redundancy and failover systems
Preventing downtime requires infrastructure that can automatically adapt to failure. The study describes this as building systems that can “continue functioning even when some of their components fail” through redundancy and failover.
Adopt business continuity planning
The study recommends that organizations prepare for disruptions in advance, ensuring they can “maintain operations and recover quickly” when failures occur.
Regularly test and update systems
The study’s research on business continuity stresses that prevention is not a one-time effort; rather, systems must be continuously tested and improved to remain effective against evolving risks.
FAQs
How often should I back up my server data?
It's recommended to back up server data regularly, ideally daily or even more frequently for critical data. The frequency of backups may depend on factors such as the importance of the data and the rate at which it changes.
What alternative communication platforms can be used during an email server downtime?
During email server downtime, you can use alternative communication platforms like instant messaging apps, voice and video conferencing tools, internal communication systems, texting, SMS, phone calls, social media, collaboration platforms, cloud-based document sharing services, bulletin boards, and alternative email services. These platforms enable real-time communication, collaboration, and information sharing, ensuring continuity in communication and workflow even when email is unavailable.
See also:
What is server redundancy?
Server redundancy involves having backup systems or components in place to ensure continuity of services in case of a failure. This can include redundant power supplies, network connections, data storage systems, or even entire servers.
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Tshedimoso Makhene
