When you add files to the Selection list in the Select Attachments window for a new email messages, the software checks to see if the total size of files selected are more than 1 megabyte in size. If the total size of files are larger than 1 megabyte, the software displays a warning button by the Add button.
You can send and receive email messages in orchidmedia, which are larger than 1 megabyte in size, however, you need to know that there may be limits on the size of email messages set by your email account provider. If the email size is larger than the limits set by the email account provider, then the email will not be sent.
You should also consider the time taken to send large emails, and the time taken for the recipient to download your email. If you or the recipients have a dialup connection to the internet, then a large email can take an inconvenient amount of time to send and receive.
The fastest dialup connection speed is 128 kilobits per second. This represents a speed of 16,384 bytes per second. Email messages are encoded and divided into packets when they are sent, so the actual number of bytes sent for a message is much larger than the actual size of the message. A 1 megabyte email message can take over 2 minutes to upload at the fastest dialup connection speed.
If you use a DSL connection to the internet, download speeds are much faster, however the upload speed from your computer can be as little as 256 kilobits per second. This means a 1 megabyte email message can take over 1 minute to upload.
We have set a limit of 64 megabytes on the largest single email message that orchidmedia can handle. This is because emails are stored in orchidmedia's secure storage system, and in order to ensure that information stored within the secure storage system can not be corrupted by system failures, we use the computer's memory to store changes to the storage files before we commit changes to these files. Since there is a limit to the amount of available memory on your computer, we have to set a limit on the amount of memory to use to handle a single email message. We will review this limit over time to see if any customers are inconvenienced by the limit, and if it is a problem, we can look at increasing it.