Pasting email addresses into an Outlook email

[rharha]

Is there a limit to how many email addresses I can paste at one time from an Excel list into the To: field of an Outlook email? I've tried pasting 1200 at one time and it appears to work mostly fine, but there are occasional quirky results that makes me wonder if I'm pasting too many at one time.

[Deerpark]

I don't know the limit but OE have a limit to how many characters a text field like the TO: can hold. If you're copying 1200+ emails into a field you could be hitting that limit.
Remember OE is a personal email client and not designed as a mass mailer.