|Document ID: ||4670|
|Subject: ||Maximum Email Size|
|Creation date: ||12/14/15 4:35 PM|
|Last modified on: ||4/12/22 11:54 AM|
Configuring maximum email size
By default, Xeams rejects messages larger than 20MB. This is done by design and it is configurable. However, before
you change this behavior it is important you understand the implications this can have on Xeams.
Email servers are not designed to handle large attachments and neither is Xeams. This is because large messages
require more memory for processing. This memory requirement affects Xeams more than other email servers that do
not analyze incoming messages.
Additionally, Xeams uses a multi-threaded architecture to process incoming
messages. This means messages containing large attachments can come in from different sources simultaneously adding up
to a large memory usage.
A better solution
is to use a product
that is designed for large attachments. One such product is SynaMan
which can handle emails containing gigabytes of attached files.
It is an easy to use, feature rich, file sharing tool designed for large attachments with an embedded SMTP server.
You can use both Xeams and SynaMan in conjunction to employ Xeams' powerful Spam filtering and SynaMan's large file capabilities.
Modifying configuration in Xeams
Use the following steps to modify the maximum email size in Xeams:
- Hover your mouse over Filter Management and click on Message Size
- Modify the Maximum "Global" size field. We strongly recommend not using a number higher than
30 MB, as that can potentially bring down the entire server
Email size is usually 30% larger than the attached file. This happens because attached files get encoded in to BASE64 format, that
increases the size of an email by about 30%. Therefore, if you specify 30MB in Xeams you will only be able to attach files that are 25MB or smaller.
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