Most mail servers limit the message size -- the size of the entire message including all attachments, the body of the message, any formatting, etc. The following are ones for major email providers and some ISPs.
Date of list: 12/3/2014 -- values may change depending on the provider's own choices.
| Email Provider | Size Limit |
|---|
| Gmail |
25MB |
| Outlook.com and Hotmail |
10MB |
| Yahoo Mail |
25MB |
| AOL |
25MB |
| Mail.com |
50MB |
| Comcast |
15MB |
| Cox |
10MB |
| Time Warner |
30MB |
| AT&T Yahoo! |
20MB |
| Rogers |
25MB |
| BellSouth |
10MB |
| Verizon |
2MB |
If your message is to large for the receiving server, you will either receive a bounce back message, a pop up in your mail client, or in some cases the message may be stuck in your outbox without any general errors.
