RSSCategory: New Outlook

Why is Outlook IMAP not syncing?

| May 30, 2026

Why is Outlook IMAP not syncing? Fix Outlook Email, Calendar, Contacts, and Microsoft 365 Sync Problems

–>Quick Answer:
Outlook may stop syncing because of OST corruption with IMAP or Exchange, damaged Outlook profiles, Microsoft 365 or App Password authentication failures, Gmail IMAP delays, iCloud conflicts, VPN interruptions, antivirus filtering, or Exchange Server connection issues.

Hi folks, this is my #1 request of all my Outlook calls. Outlook may stop syncing for 1000 reasons, but for you, it’s only probably only one and we need to figure that out. I’m a Microsoft Outlook Expert and I can help you with this request. I also work as a Microsoft 365 IT consultant.

This post will be about IMAP. For POP click here, Exchange not connecting click here and Google Workspace click here.

First, if you are using your email with IMAP configuration in Outlook, that list is way longer than a POP or Exchange account. Look in your Outlook and find out how your email is configured.

Let’s start by figuring out your account types. 

  1. Go to FILE in the upper left corner
  2. Click on Account Settings and it will drop down and click on Account Settings again.
  3. You will see how your emails are configured: POP, IMAP, Exchange or MAPI (Google Workspace)
  4. If not IMAP, use these reference links POP click here, Exchange click here and Google Workspace click here.

Common Reasons Outlook Stops Syncing IMAP

  1. Corrupted Outlook OST File (the OST is at its limit of 50 gigs)
  2. Damaged or corrupted Outlook Profile (very common, you will see “This Computer Only” folders)
  3. Mailbox needs refreshing/remapping (common for Network Solutions, HostGator, BlueHost)
  4. App Password required
  5. Antivirus (McAfee can do this more than any other)
  6. VPN is the biggest problem lately
  7. DNS Problems (misconfigured MX records)
  8. Domain issues (you need to update DNS for email delivery, or check to see if the bill is paid)
  9. Outlook Add-In Problems (rare but can happen on occasion)

Now you know the “whys” and hopefully this will help you try to figure it out, I can help too if you’d like to schedule an appt.

Keep in mind that IMAP synching can be a longer request to complete. Typical is 1-2 hours of billable time and many calls. I will also back up all your data and complete a full onboarding before starting. This is important to do and also something amateurs don’t often do. Hiring an experienced Outlook master technician like me will get the job done using best practices. Side note: Often clients opt to move to a Microsoft Exchange server instead of repairing their Outlook profile. This will be covered in your onboarding.

Why is Outlook not syncing?

| May 30, 2026

Why is Outlook not syncing? Fix Outlook Email, Calendar, Contacts, and Microsoft 365 Sync Problems

–>Quick Answer:
Outlook may stop syncing because of OST corruption with IMAP or Exchange, damaged Outlook profiles, Microsoft 365 or App Password authentication failures, Gmail IMAP delays, iCloud conflicts, VPN interruptions, antivirus filtering, or Exchange Server connection issues.

Hi folks, this is my #1 request of all my Outlook calls. Outlook may stop syncing for 1000 reasons, but for you, it’s only probably only one and we need to figure that out. First, if you are using your email with IMAP configuration in Outlook, that list of reasons why is way longer than a POP or Exchange account. I’m a Microsoft Outlook Expert and I can help you with this request. I also work as a Microsoft 365 IT consultant.

This post will be about IMAP. For POP click here, Exchange not connecting click here and Google Workspace click here.

First, if you are using your email with IMAP configuration in Outlook, that list is way longer than a POP or Exchange account. Look in your Outlook and find out how your email is configured.

Let’s start by figuring out your account types. 

  1. Go to FILE in the upper left corner
  2. Click on Account Settings and it will drop down and click on Account Settings again.
  3. You will see how your emails are configured: POP, IMAP, Exchange or MAPI (Google Workspace)
  4. If not IMAP, use these reference links POP click here, Exchange click here and Google Workspace click here.

Common Reasons Outlook Stops Syncing IMAP

  1. Corrupted Outlook OST File (the OST is at its limit of 50 gigs)
  2. Damaged or corrupted Outlook Profile (very common, you will see “This Computer Only” folders)
  3. Mailbox needs refreshing/remapping (common for Network Solutions, HostGator, BlueHost)
  4. App Password required
  5. Antivirus (McAfee can do this more than any other)
  6. VPN is the biggest problem lately
  7. DNS Problems (misconfigured MX records)
  8. Domain issues (you need to update DNS for email delivery, or check to see if the bill is paid)
  9. Outlook Add-In Problems (rare but can happen on occasion)

Now you know the “whys” and hopefully this will help you try to figure it out, I can help too if you’d like to schedule an appt.

Keep in mind that IMAP synching can be a longer request to complete. Typical is 1-2 hours of billable time and many calls. I will also back up all your data and complete a full onboarding before starting. This is important to do and also something amateurs don’t often do. Hiring an experienced Outlook master technician like me will get the job done using best practices. Side note: Often clients opt to move to a Microsoft Exchange server instead of repairing their Outlook profile. This will be covered in your onboarding.

SMTP error from remote mail server after pipelined MAIL

| May 26, 2026

SMTP error from remote mail server after pipelined MAIL

If you are online searching for this error and figuring out how to resolve it, first I’ll say “I’ve never seen this before” and that is rare in my business. From what I know about email delivery errors in the past, I’m going with spoofing. I reviewed the DNS record and the DMARC and DKIM were not updated, so I updated and am waiting on propagation. I will update when I have results.

If you need help with email delivery or DNS records, please use the form below to get in contact.

 

 

Pinning sticky notes on the side bar of New Outlook

| May 13, 2026

Pinning sticky notes on the side bar of New Outlook

Hi folks, the sticky notes or “notes” in Microsoft Exchange, Outlook.com and older MSN accounts is not available to be pinned on the side anymore. What you can do is find the “notes” in your mailbox and right click on the 3 dots and click “add to favorites” and this will pin them at the top of your folders.

I hope this helps!

Lisa

Pinning sticky notes on the side bar of OWA

| May 13, 2026

Pinning sticky notes on the side bar of OWA

Hi folks, the sticky notes or “notes” in Microsoft Exchange, Outlook.com and older MSN accounts is not available to be pinned on the side anymore. What you can do is find the “notes” in your mailbox and right click on the 3 dots and click “add to favorites” and this will pin them at the top of your folders.

I hope this helps!

Lisa

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