How to Send Large Email Attachments in Germany

Why large attachments are difficult in German inboxes

German users often search for ways to send “große Anhänge” or “große Dateien per Mail” because email limits vary between GMX, WEB.DE, T-Online, Gmail, Outlook, and company mail servers.

Even when one provider allows a larger message, the recipient server may reject it. A business, university, public office, or customer mailbox can have a stricter incoming limit than the sender expects.

  • GMX and WEB.DE users may run into attachment and mailbox storage limits.
  • Outlook and Microsoft 365 tenants may be controlled by company IT rules.
  • Some recipients prefer attachments over unknown file-sharing links for compliance reasons.

The safer way: split the file into real attachments

SendSplit is useful when you want email delivery but the file is too large for one message. Instead of asking the recipient to open a cloud account, it sends numbered ZIP parts directly to the inbox.

  1. Prepare the file or ZIP archive you want to send, up to 200MB.
  2. Open sendsplit.com/upload-to-send.
  3. Choose 10MB splits for GMX, WEB.DE, public institutions, and unknown business recipients.
  4. Enter the recipient address and send the parts as standard email attachments.
  5. Tell the recipient to download every part into one folder and open the first part to extract the original file.

When this helps more than a cloud link

Cloud services are not always ideal for German business communication. A client may not want a new account, a company firewall may block file-sharing domains, or a contract may require files to be delivered through email.

  • Sending signed PDFs, invoices, scans, or design exports to clients.
  • Sending files to a public institution or organization with strict email filtering.
  • Sending material to someone who expects attachments, not a download page.

Recommended split size for Germany

When in doubt, use 10MB. It creates more email parts, but it is the safest setting for mixed German mailbox environments and strict incoming gateways.

  • 10MB: safest for GMX, WEB.DE, T-Online, public offices, and corporate recipients.
  • 20MB: reasonable for Outlook or Gmail recipients who confirmed their limit.
  • 25MB: use only when you know the recipient provider accepts it.

Why Cloud Links Are Not Always Ideal in Germany

Many German business users are cautious about external file-sharing links. A recipient may not want to create an account, may be using a locked-down company browser, or may need the file stored as part of the email record. Public institutions and regulated companies can also be more conservative about unknown download domains.

SendSplit keeps the workflow closer to traditional email. The file arrives as numbered attachment parts, so the recipient can keep the message in their normal mailbox archive and does not need a separate cloud permission flow.

Practical Sending Checklist

  • Use German-friendly filenames such as Angebot_Mueller_2026.pdf or Projektunterlagen_Berlin.zip.
  • Prefer 10MB splits when sending to GMX, WEB.DE, T-Online, public offices, or unknown company mailboxes.
  • Tell the recipient to download every numbered part before opening the first one.
  • Use password protection for invoices, HR files, contracts, or documents containing personal data.

A Note on Business Etiquette

When sending files to German clients or organizations, include a short note in the email body explaining why the file arrives in parts. Mention the original filename, the number of expected parts, and whether a password is required. Clear instructions reduce support questions and make the split delivery feel intentional rather than unusual.

Send large email attachments in Germany without forcing a cloud link. SendSplit delivers files up to 200MB as inbox-friendly attachment parts. Try SendSplit.