Outlook Not Working or Business Email Issues?

When Outlook cannot send or receive emails, employees cannot communicate normally with clients, suppliers and colleagues. NBG TEAM helps businesses in Belgrade quickly identify whether the issue is caused by Outlook, a Microsoft 365 account, password, licence, mailbox, DNS settings or the email service itself.

Request email support

Call us: +381 60 6700-112

Outlook and business email support for businesses
Outlook
sending, receiving and profile issues
Microsoft 365
accounts, licences, passwords and mailboxes
Email domain
DNS, SPF, DKIM, DMARC and security

When an email issue stops business

Business email is one of the most important systems in a company. When Outlook is not working, when messages are not arriving, cannot be sent or an account keeps getting locked, the issue directly affects sales, support, administration and communication with clients.

The cause is not always Outlook itself. The issue may be in the Microsoft 365 account, licence, password, mailbox, internet connection, DNS settings, domain records, antivirus software, Outlook profile or a compromised account.

That is why the issue should not be solved randomly. The first step is to understand whether it affects one user, multiple employees or the whole company.

Common symptoms

  • Outlook is not receiving emails
  • Outlook is not sending emails
  • emails are delayed or bouncing back
  • messages are landing in spam
  • Outlook keeps asking for the password
  • a user cannot sign in
  • a Microsoft 365 account is blocked
  • the mailbox is full
  • email is not syncing on the phone
  • email works in the browser but not in Outlook
  • email works for one user but not another
  • an attachment cannot be sent
  • a shared mailbox is not working
  • automatic replies are not working
  • there is a suspected hacked email account
  • someone is sending emails from the company address

What you can check before calling us

Before reporting the issue, it is useful to collect basic information. This helps determine faster whether the issue is local, user-related, domain-related or connected to the Microsoft 365 service.

  • whether one user or multiple employees are affected
  • whether email works through webmail or a browser
  • whether Outlook shows an error
  • whether the user knows the password
  • whether the account was recently locked or reset
  • whether the mailbox has enough space
  • whether the internet connection works normally
  • whether email works on the phone
  • whether the issue appeared after a password change
  • whether DNS records were recently changed
  • whether there is a suspicious email or phishing message
  • whether messages bounced back with an error

We do not recommend randomly deleting Outlook profiles, changing DNS records or resetting passwords for multiple users if you are not sure what caused the issue, because that can make business communication harder to restore.

What NBG TEAM checks

1. Outlook profile and settings
We check the Outlook profile, synchronisation, sending and receiving errors, local cache, add-ins, rules, archive and mailbox connection.
2. Microsoft 365 account
We check the user account, password, MFA, licence, mailbox, blocks, access rules and service status.
3. Mailbox and storage
We check whether the mailbox is full, whether rules are moving messages, whether folders are synchronised and whether the user can access shared mailboxes.
4. DNS and email domain
We check MX, SPF, DKIM and DMARC records, domain correctness and basic settings that affect email delivery.
5. Sending and receiving emails
We test sending, receiving, bounced messages, spam reputation and errors users receive during communication.
6. Account security
If a compromised email account is suspected, we check sign-ins, forwarding rules, MFA, password changes and additional protection measures.
7. Mobile devices and webmail
We check whether email works in a browser, on phones and on other devices to determine whether the issue is in Outlook or the account itself.

Remote support or on-site visit

Most Outlook and business email issues can be resolved through remote access. This is the fastest way to check accounts, passwords, licences, Outlook profiles, Microsoft 365 settings, DNS records and mailboxes.

An on-site visit is needed when the issue includes multiple computers, the local network, internet connection, setting up new devices, scan-to-email, local applications or a situation where remote access is not possible.

Remote support most often solves:

  • Outlook profile and synchronisation
  • Microsoft 365 accounts
  • password resets
  • MFA settings
  • mailboxes and licences
  • shared mailboxes
  • DNS and domain records
  • sending and receiving issues
  • suspected compromised accounts

An on-site visit is needed for:

  • multiple computers with the same issue
  • Outlook setup on new computers
  • issues connected to the local network
  • scan-to-email from printers
  • devices without remote access
  • users who need physical help with equipment

If the email issue keeps coming back

If Outlook often asks for a password, emails sometimes do not arrive, messages land in spam or users regularly lose account access, the issue should be solved systematically. This may include checking Microsoft 365 settings, DNS records, MFA protection, user rights, mailbox rules and password policies.

In these situations we recommend an email system review and, when needed, managed IT maintenance. This means issues are not solved from scratch every time, and it is clear who manages accounts, licences and security rules. For everyday support requests, see IT Support.

When emergency IT support is needed

If business email is not working for the whole company, if you cannot communicate with clients or if an email account may be compromised, the issue should be treated as urgent. In that situation, accounts, access, forwarding rules and security settings should be checked quickly. See emergency IT support for this type of case.

Outlook or business email not working?

Send a short description of the issue: whether Outlook cannot send or receive messages, whether one user or the whole company is affected, whether email works in a browser and whether there is a suspicious message or error.

Request email support

Frequently asked questions

What should we do if Outlook is not working?
First check whether the internet connection works, whether email works in a browser, whether the issue affects one user or multiple employees and whether Outlook shows a specific error. If the issue affects business work, account and Outlook profile diagnostics are the safest next step.
Why is Outlook not receiving emails?
The cause may be the Outlook profile, poor synchronisation, a full mailbox, a Microsoft 365 account issue, DNS settings, a rule that moves messages, a spam filter or an internet connection problem.
Why is Outlook not sending emails?
The issue may be related to the internet connection, Outlook profile, mailbox, licence, SMTP settings, sending limits, an attachment, DNS records or a blocked account.
Can you fix Outlook issues remotely?
In most cases, yes. Outlook, Microsoft 365 account, password, licence, mailbox and shared mailbox issues are most often resolved through remote access.
What if business email is not working for the whole company?
If email is not working for the whole company, we check the Microsoft 365 service, domain, DNS records, MX, SPF, DKIM, DMARC, internet connection and recent changes that may have affected email delivery.
What if we suspect an email account has been hacked?
The password should be changed quickly, and sign-ins, MFA, forwarding rules, account recovery and user permissions should be checked. When needed, we recommend additional protection measures for Microsoft 365 and business email.
Do you configure Microsoft 365 email accounts?
Yes. We configure Microsoft 365 users, licences, mailboxes, Outlook, shared mailboxes, MFA, basic security rules and employee access.
Do you work only with businesses?
Yes. NBG TEAM works with companies and legal entities that need IT support, business email, Microsoft 365 administration and business system maintenance.

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