Some e-mail providers will reject an e-mail if the file size exceeds their maximum file size, which could potentially be lower than the limit imposed by 1&1 IONOS. If so, you will receive a bounceback message from that e-mail provider informing you that the mail was not delivered because the attachment is too large.
Please see a list of packages and their storage limits.
Find out what options are available for you to change to a new package that will include unlimited e-mail accounts.
Get live support 24/7 from our team of experts.
To help us serve you better, please sign in with your account information.
If you cannot or do not wish to sign in, please click here to speak to support.