greyscanner trapped some senders "with no MX or A" for me,
which, in fact, do have both MX and A:
# zgrep calgary /var/log/maillog.?.gz
/var/log/maillog.1.gz:Dec 09 16:22:30 www greyscanner[29493]: Trapped
207.46.100.90: Mailed from sender ucalgary.ca with no MX or A
/var/log/maillog.1.gz:Dec 09 16:22:30 www greyscanner[29493]: Trapped
157.56.111.66: Mailed from sender ucalgary.ca with no MX or A
/var/log/maillog.1.gz:Dec 09 16:22:30 www greyscanner[29493]: Trapped
157.56.111.91: Mailed from sender ucalgary.ca with no MX or A
/var/log/maillog.1.gz:Dec 09 16:22:30 www greyscanner[29493]: Trapped
157.56.110.99: Mailed from sender ucalgary.ca with no MX or A
$ host ucalgary.ca
ucalgary.ca has address 136.159.37.42
ucalgary.ca mail is handled by 5 ucalgary-ca.mail.protection.outlook.com.
$ host 207.46.100.90
90.100.46.207.in-addr.arpa domain name pointer
mail-by2on0090.outbound.protection.outlook.com.
Am I missing something?
Can it be that greyscanner just couldn't resolve at the moment,
and so failed to see the MX or the A?
Jan
