@pete-s said in Gmail on Outlook sending multiple emails with attachment:

@jokoco said in Gmail on Outlook sending multiple emails with attachment:

What I don't understand is why it sends multiple copies.

Because you are going over the maximum allowed attachment size. It's simply not supported.

What you should be asking is why gmail sends it at all. Obviously a bug i their system.

That being said - 25 MB attachment is not a lot. Some places mentions that the limit is actually 25MB total size with attachments being base64 encoded, which means that you will hit the limit somewhere around a 18 MB attachment.

If you send a lot of email attachments maybe it's time to look for another email provider.