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Epoch dates for the start and end of the year/month/day Convert seconds to days, hours and minutes What is epoch time? The Unix epoch (or Unix time or POSIX time or Unix timestamp) is the number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap seconds (in ISO 8601: 1970-01-01T00:00:00Z). Literally speaking the epoch is Unix time 0 (midnight 1-1-1970), but 'epoch' is often used as a synonym for 'Unix time'. Many Unix systems store epoch dates as a signed 32-bit integer, which might cause problems on January 19, 2038 (known as the Year 2038 problem or Y2038).
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MODIFY PRIVACY FLAGS IN SENDMAIL
Edit file /etc/mail/sendmail.cf
Add in the PrivacyOptions variable with the next options flags
PrivacyOptions=authwarnings,needmailhelo, needexpnhelo, novrfy, noexpn
