Email Message Size

Email messaging can have a significant impact on the size set for a subscriber's mailbox. An email message can be a short memo or can include attachments of software files of considerable size. If subscribers send fax and voice messages, planning is more difficult.

Messaging converts all message components into seconds of space in the mailbox.The following tables show some examples of typical mailbox sizes and corresponding maximum email and maximum message length capacities.

Mailbox Suggested Sizes and Maximum

Mailbox Size, in seconds and (hours:minutes) Mailbox Size, in MB Notes
2400 sec (0:40 hr) 19.2 MB The message size is determined by multiplying the message length in seconds by 8000 and dividing by 1000000.
3600 sec (1:00 hr) 28.8 MB  
4800 sec (1:20 hr) 38.4 MB  
8400 sec (2:20 hr) 67.2 MB System default
32767 sec (9:06 hr) 262 MB System maximum for one subscriber's mailbox

Email and Voice Message Sizes, Suggested Sizes and Maximum

Message Length, in seconds and (minutes) Message Size, in MB Notes
600 sec (10 min) 4.8 MB The message size is determined by multiplying the message length in seconds by 8000 and dividing by 1000000.
900 sec (15 min) 7.2 MB  
1200 sec (20 min) 9.6 MB System default
10800 sec (180 min or 3 hours) 86.4 MB System maximum for one message