We work with a vendor that still uses AOL and we email several times per day. Today we received the following error message:
mtain-md12.r1000.mx.aol.com gave this error:
: (CON:B1) http://postmaster.info.aol.com/errors/554conb1.html
There's a problem with the recipient's mailbox. Please try resending this message. If the problem continues, please contact your helpdesk.
Upon researching on AOL, I see:
- The IP address has been blocked due to a spike in unfavorable e-mail statistics.