Question regarding Outlook Mobile app on iOS device

Question

I have installed Domino Server and allowed non-secure port 143 for IMAP and 25 for SMTP. This is we are connecting internal network. This is not on public domain.

I am able to access IMAP account on Laptop using Outlook Client.

Also On Apple iOS , we configure a native IMAP account as per below link --> https://support.apple.com/en-in/HT201320

When we try to configure Outlook Mobile app on iPAD using below steps.

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1. Start the app
   From the home screen, tap Outlook to run the app.
2. Select the account
   Click the icon in the top left, and then tap the small "gear" icon at the bottom.

Next, tap your address@ssss .com account.

3. Verify the account settings

Tap Edit Login Information

Email: your email address (all lowercase)
Display Name: your full name, such as Steve Jobs
Description: your email address (all lowercase)

In the "IMAP Incoming Mail Server" section:
IMAP Hostname: servername:143
IMAP Username: your email address (all lowercase)
IMAP Password: your email password

In the "SMTP Outgoing Mail Server" section:
SMTP Hostname: servername:25
SMTP Username: your email address (all lowercase)
SMTP Password: your email password

After verifying these settings, tap Sign In to save the settings and return to the prior screen.

4. Optional: Verify the "Advanced Settings"

Outlook should automatically detect the correct "Sent" and "Trash" folders on the server. If you want to verify (or change) these settings, tap Advanced Settings. This will bring up a screen where you can manually select a specific folder in which to save copies of sent or deleted message.

Tap the special folder that you want to edit (such as Sent or Trash). This will display a screen with a list of all folders for your email account. Tap the desired folder.

When you are done reviewing the advanced settings, simply tap the left arrow at the top to return to the prior screen showing the "IMAP" settings.

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We encounter error
Error: Invalid IMAP Server Information

Question :

Does it means Outlook Mobile app for iOS supports only secure port IMAP 993 and smtp 465. Because other mail native app working fine on IOS with same server on non-secure ports.

Please suggest.

Answer 1

Hi, please use the dedicated forum for Mobile issues:

https://answers.microsoft.com/en-us/msoffice/forum/msoffice_outlook-mso_imobile?sort=LastReplyDate&dir=Desc&tab=All&status=all&mod=&modAge=&advFil=&postedAfter=&postedBefore=&threadType=all&isFilterExpanded=false&page=1

Answer 2

Hi @Hemant Naik ,
Thanks for your feedback here.

Agree with @Andy David - MVP , please kindly understand that here we mainly focus on general issues about Outlook desktop client and know little about Outlook for iOS. To better solve your issue, it is suggested to post a new thread to the dedicated forum for Outlook for iOS.

The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thanks for your understanding and hope your question will be resolved soon.

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