I use a sendmail program on a very old internet appliance that is not supported anymore. My problem is that I am able to send mail out to anyone with no problems, however, I am not able receive email from selected users/companies. It was originally configured by someone who has no idea, and I inherited this problem. Not even sure how it was setup, as there is no paperwork on it. Here is the message I receive when I try to send from home.
451 4.4.1 reply: read error from mail.xxxxxxxx.com.
<user@xxxxxxxx.com>... Deferred: Connection timed out with mail.xxxxxxxx.com.
451 4.4.1 reply: read error from mail.xxxxxxxx.com.
Warning: message still undelivered after 4 hours
Will keep trying until message is 2 days old
I have checked the MX and DNS records and can find nothing wrong. Does anyone have any ideas, or anyway to test this to determine exactly what the problem is.
Thank you in advance
451 4.4.1 reply: read error from mail.xxxxxxxx.com.
<user@xxxxxxxx.com>... Deferred: Connection timed out with mail.xxxxxxxx.com.
451 4.4.1 reply: read error from mail.xxxxxxxx.com.
Warning: message still undelivered after 4 hours
Will keep trying until message is 2 days old
I have checked the MX and DNS records and can find nothing wrong. Does anyone have any ideas, or anyway to test this to determine exactly what the problem is.
Thank you in advance