E-mails with large attachments do not send

[petermikitsh]

Small text files (e.g., < 50 KB) will send. Files with larger attachments (e.g., > 1 MB) cause the e-mail to not be sent when using the fileName option.

Edit: If I read in large files in my Meteor app and supply them using the content option, rather than supplying the fileName option, the e-mail will send.

It seems like this might be an async timing issue.