{"id":8815,"date":"2025-07-16T14:16:10","date_gmt":"2025-07-16T12:16:10","guid":{"rendered":"https:\/\/prosteit.pl\/?post_type=uslugi&p=8815"},"modified":"2025-09-29T15:53:37","modified_gmt":"2025-09-29T13:53:37","slug":"online-exchange-migration","status":"publish","type":"uslugi","link":"https:\/\/prosteit.pl\/en\/it-services\/cloud-services\/online-exchange-migration\/","title":{"rendered":"Migrating Microsoft Exchange Server to Exchange Online"},"content":{"rendered":"
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Briefly about migrating Microsoft Exchange server to Exchange Online<\/h2>
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Migrating an on-premises Exchange server to Exchange Online (Microsoft 365)<\/a><\/strong> This is not only a step towards modern work, but also real savings and greater data security. For many companies, this means an end to server outages, manual administration, and costly updates.<\/p>\n

Our company provides comprehensive support for such migrations \u2013 from the initial audit, through environment preparation, to the transfer of all mailboxes, contacts, and permissions without disrupting the team's daily work. We work with both small and medium-sized organizations that require technical support and a clearly defined timeline.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Most common problems<\/h2>
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\n \n \n Outlook connection problems after migration<\/span>\n\n \n
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Often, after moving mailboxes to the cloud, Outlook cannot be connect correctly<\/a>This is due to outdated Autodiscover entries or DNS errors. We can help resolve these conflicts.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Lack of knowledge about migration methods<\/span>\n\n \n
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Customers are unsure whether to choose a cutover, staged, or hybrid migration. We recommend the best method based on the number of users and the Exchange server version.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Fears of losing data or messages<\/span>\n\n \n
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A poorly executed migration can result in data loss or incomplete mailboxes. Therefore, we perform test migrations and create backups before the migration.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Too many boxes and no resources to move them manually<\/span>\n\n \n
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Manually migrating dozens of mailboxes is time-consuming. We automate this process using PowerShell and the Exchange Admin Center.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n No valid SSL certificates on the local server<\/span>\n\n \n
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Old certificates can block hybrid migration. We can help you renew them or implement secure workarounds.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n <\/div>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n \n \n Too low connection bandwidth during migration<\/span>\n\n \n
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Moving data to the cloud can be time-consuming over slow connections. We recommend nightly strategies and plan migrations in batches.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Incorrect permissions after migration<\/span>\n\n \n
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After migration, you may lose access to calendars, shared mailboxes, and folders. We can help you fix this and automate the restoration of permissions.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n No retention and backup policy after moving to the cloud<\/span>\n\n \n
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Exchange Online is not a substitute for a full backup. We implement Microsoft 365 mailbox backup solutions in accordance with company policy.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Account and password synchronization issues (ADSync\/Azure AD)<\/span>\n\n \n
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Active Directory integration may cause synchronization errors. We're verifying the configuration. Azure AD Connect<\/a> and we secure the process.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Need to make minor changes to the website<\/span>\n\n \n
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Adding a new section, updating contact details or an offer \u2013 without technical support, even simple changes can be problematic.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n <\/div>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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What can we do for you?<\/h2>
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\n Accounting offices and law firms <\/h3>\n \t\t \t

Customer data must be secure and available 24\/7. Migrating to Exchange Online ensures business continuity.<\/p>\n <\/div>\n \n \n <\/div>\n <\/a>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n Small and medium-sized service companies <\/h3>\n \t\t \t

By migrating to Microsoft 365, they gain complete email, calendar, and communication in one place.<\/p>\n <\/div>\n \n \n <\/div>\n <\/a>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n Schools and public institutions <\/h3>\n \t\t \t

The cloud facilitates remote communication, especially in education. We help you migrate your entire system without the risk of data loss.<\/p>\n <\/div>\n \n \n <\/div>\n <\/a>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Who benefits<\/h2>
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\n Manufacturing companies with their own server <\/h3>\n \t\t \t

Older, on-premises servers pose a risk of downtime. The cloud eliminates outages and maintenance costs.<\/p>\n <\/div>\n \n \n <\/div>\n <\/a>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n Internal IT departments <\/h3>\n \t\t \t

Internal IT teams don't always have experience with migrations. We can support them every step of the way.<\/p>\n <\/div>\n \n \n <\/div>\n <\/a>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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There's no point in investing in an on-premises server. Exchange Online is a secure and scalable start.<\/p>\n <\/div>\n \n \n <\/div>\n <\/a>\n <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Why us<\/h2>
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We have completed many successful migrations to Microsoft 365<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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We know what to look out for and how to anticipate potential problems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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We minimize downtime in company operations<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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We plan the migration so that it does not block daily work.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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We work locally and remotely<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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We can help companies in Warsaw and the surrounding area, but also remotely throughout Poland.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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We understand business needs, not just technology<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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We look at implementations holistically \u2013 so that they bring real value.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Quick answers<\/h2>
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Find answers to frequently asked questions.<\/span><\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n \n \n Can my company experience disruptions during the migration?<\/span>\n\n \n
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We work to avoid downtime \u2013 migration takes place in stages, often after business hours.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n How long does it take to migrate an Exchange server to the cloud?<\/span>\n\n \n
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This depends on the number of mailboxes and connection quality. Typically 1\u20133 business days, larger companies: up to a week.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Will I keep all my emails and calendars?<\/span>\n\n \n
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Yes. The migration includes all mailbox contents \u2013 email, calendars, contacts, and attachments.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Do I need a Microsoft 365 license?<\/span>\n\n \n
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Yes. We help you choose the right package and can provide licenses directly.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Can the migration be reversed?<\/span>\n\n \n
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Theoretically, yes, but it's complicated. That's why we make a full backup before transferring data.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Do I need a new Outlook after migration?<\/span>\n\n \n
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Not necessarily. Outlook 2016 and later versions work fine with Microsoft 365, but it's worth updating.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Do you also support shared mailboxes and groups?<\/span>\n\n \n
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Yes. We migrate all mailbox types, permissions, and groups as they were before migration.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n \n

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\n \n \n Do you also configure Teams, OneDrive and SharePoint?<\/span>\n\n \n
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Yes, at the client's request we can extend the implementation to include the full Microsoft 365 environment.<\/p> <\/div>\n\n <\/div>\n\n <\/div>\n\n