How big can attachments be from incoming emails? Is there a limit?

[patty81]

Is there a limit on how large of an attachment I can receive?

[thejanith]

Th limit on sending is 25MB, so I figure the incoming limit is probably the same.

[Froggie]

There is an outgoing limit of 25 MB. For large attachments, consider using one of the services designed specifically for this rather than e-mail.

There are many free services which allow sending files of 50 MB or even 2 GB. Set up an account once you decide which service to use. Once uploaded, the file(s) can be downloaded after sending the link to the recipient. The files are available for a limited time, depending on the service used.
People with desktop mail clients will appreciate your sending large files this way, since it speeds up their mail downloads.

Too Big for Email - Send up to 2 GB at the same time (8 hours of upload time) Upload multiple files at the same time, with password protection, delivery receipt, encryption and room for a message too.
http://www.toobigforemail.com/
Dropbox (Free) - Sharing isn't one-way; your recipients can upload files for you as well. The free version lets you upload up to 2 GB's of files. You can share the files for 30 days.
http://www.dropbox.com
MailBigFile - Send files of up to 1GB (= 1000 MB) for free.
http://www.mailbigfile.com/
Transfer Big Files - Send files of up to 1GB (= 1000 MB) for free.
https://www.transferbigfiles.com/
YouSendItFree service - Send very large mails (attachments, up to 1 GB = 1000 Mb).
https://www.yousendit.com/
Ge.tt - Share link immediately before uploaded, view easily, shares with Facebook/Twitter
http://ge.tt/