zgrab2
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dial tcp i/o timeout
I want to scan the smtp fingerprint information of the specified domain name list, but I found that if there are too many domain names in the input file, almost all the results will report the following error:
"error":"dial tcp xxx.xxx.xxx.xxx:25: i/o timeout"
It seems that the number of IPs scanned at a time cannot exceed 50, otherwise such an error will be reported. By the way, This is the command I used:
zgrab2 -f mx.txt -o res.txt smtp --send-helo --helo-domain gmail.com
Is there any way to solve this problem?