Export SiteGround Emails to Office 365

SiteGround email lives on a hosting server and Office 365 cannot pull it across with a single button. Dragging mail by hand fails on big mailboxes and Microsoft's own migration needs CSV files and admin steps that confuse first time users. Below are three ways to copy SiteGround mail into Office 365, with real steps, limits and fixes for missing SiteGround emails in Office 365.

What do you need before you copy SiteGround mail into Office 365?

You need three items. They are your SiteGround mailbox login, your SiteGround IMAP server details and a licensed Office 365 mailbox that already exists. SiteGround lists IMAP on port 993 and SMTP on port 465. Your username is your full email address and exact server names sit in Manual Settings for every account. See SiteGround's Mail client configuration guide for your values.

Create Office 365 users and assign licenses first, because Microsoft's IMAP migration needs mailboxes in place before it starts. Avoid POP3 settings, since POP3 removes mail from SiteGround after download.

How to copy SiteGround mail into Office 365 with Microsoft IMAP migration?

Microsoft IMAP migration copies mail from SiteGround to Office 365 mailboxes in batches. It carries email only so contacts, calendar items and tasks remain behind. The limits are 500,000 items per mailbox, copied from newest to oldest and 35 MB per email. Microsoft's IMAP migration guide lists every step.

1. Create users in Microsoft 365 and assign licenses.
2. Verify your domain if you use a custom domain, then gather SiteGround IMAP details for every mailbox.
3. Save a CSV file with email address, username and password for every mailbox.
4. Connect Microsoft 365 to SiteGround with a migration endpoint that stores your IMAP server and port 993.
5. Create a migration batch, upload your CSV file and start it.
6. Check migrated mail in every mailbox.
7. Update your MX record so new mail reaches Microsoft 365, then delete your batch to stop syncing.

That path suits admins who copy SiteGround mail into Office 365 for many mailboxes under a custom domain. It fails for one time moves, since it needs admin rights, CSV files and MX changes and it ignores calendars and contacts.

How to copy SiteGround mail into Office 365 in Outlook?

Add both mailboxes to Outlook and drag folders from SiteGround into Office 365. That works for one small mailbox. Large folders time out and message properties can drop in transit.

1. Open Outlook and add your SiteGround account with the SiteGround IMAP details, your full email address, IMAP server and port 993.
2. Add your Office 365 account in Outlook.
3. Open your SiteGround Inbox and select all messages with Ctrl+A.
4. Drag messages into a folder under your Office 365 account.
5. Repeat for Sent, Drafts and custom folders, then compare folder counts.

Check Outlook sync status before you close it, since an incomplete sync means some mail remains unmoved. For moves from other hosts, see how to Migrate iPage email to Office 365 and how to Migrate Yandex to Office 365.

Steps to copy SiteGround mail into Office 365 with software

1. Install Corbett IMAP Migration Tool on your Windows PC and start setup with Run as Administrator.
2. Go to Email Accounts and select Add Account.
3. Enter your SiteGround email address and password, then select Find so software detects host and port. If login fails, open advanced settings and enter your SiteGround IMAP server.
4. Preview your mailbox tree. Untick Spam, Trash or any folder you do not need.
5. Set date, sender or attachment filters if you want fewer emails.
6. Select Export, choose Office 365 and sign in to your Microsoft account.
7. Start migration and watch live progress for every folder. A log and CSV report list what moved and what failed.

Test your SiteGround to Office 365 move on one mailbox in free demo, compare folders in Outlook and then buy. Lifetime licence starts at $99 with a 30-day money-back window. Folder names carry over when you copy SiteGround mail into Office 365 so your new mailbox mirrors SiteGround. To move SiteGround mail to a free mailbox instead, see how to Migrate SiteGround to Gmail. For other IMAP hosts, see how to Migrate IMAP to Office 365.

Which way to copy SiteGround mail into Office 365 is best?

Use Microsoft IMAP migration for many mailboxes under admin control and Outlook for one small mailbox. Use software to copy SiteGround mail into Office 365 when you need filters, folder selection, a progress log or no MX update.

Why are SiteGround emails missing in Office 365?

Missing mail comes from four causes after you copy SiteGround mail into Office 365. Microsoft IMAP migration ignores contacts, calendar items and tasks and it stops at 500,000 items per mailbox. Emails above 35 MB do not copy. Outlook drag and drop times out on big folders. Unticked folders and active filters exclude mail in any tool.

Compare folder counts first when SiteGround emails to Office 365 look incomplete, then open your log or batch report to find failed items. To save a copy of SiteGround mail before you move it, see how to Download IMAP emails from a server. To pull files or addresses from SiteGround mail, see how to Extract SiteGround email attachments and how to Extract email addresses from SiteGround.

Questions about SiteGround mail in Office 365