The title says it all: after completing the switch to AOL, I can only send tiny attachments. Any attachment in the MB size range, and my e-mail just sits in the Outlook outbox, with Outlook reporting "preparing to send/receive" but nothing ever happening. Currently I'm trying to send an e-mail with a 7MB atttachment.
I disabled e-mail scanning from my AV, but that didn't help. Disabled the Norton Firewall, and it didn't help. Disabled Norton Auto-Protect, and it didn't help. I also set my router to No Security, and that didn't help either.
This started when I switched to AOL (following the instructions) because Verizon is abandoning its e-mail service.