Sending emails w/attachment take much longer

All of a sudden, sending emails w/attachment take much longer than typical. I did a test, an email with a 1mb attachment takes 4 minutes using EM Client (Free) for a 1MG attachment.
Thank you.

Could be something possibly delaying your outgoing mail in the background.

If you have any eg: Optional Antivirus email scanning programs try completely disabling that to test. Could be your attachments are being scanned on the outgoing so slowing it.

Also if you have any VPNs running try disabling that to test Incase it’s slower uploading because of the VPN connection.

Other than that, could just be the type of attachment. Try sending different types of 1mb attachments and see if any are quicker.