May 2008

SMTP pipelining

Command pipelining is an extension to SMTP, the simple mail transport protocol, which speeds up the normal back and forth communication by sending multiple commands in a batch without waiting for a response to each one.

Getting bounces about e-mail that you didn't send?

If you didn't send out a bulk e-mail campaign in the middle of the night but checked your inbox in the morning and found a lot of bounce messages with the subject lines like "failure notice", "Delivery Status Notification (Failure)", "Mail delivery failed: returning message to sender", "Undeliverable mail:", etc., you may have a virus.

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Mobile phone spam: Is it coming?

Today I'm writing about mobile phone spam and it's future in the U.S. Is it coming? Are we prepared?

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DNS problems affecting e-mail delivery: PTR records

Having outgoing e-mail rejected due to domain name system configuration issues is a common problem that Internet e-mail server administrators face. There are eight things you can check to make sure that you're DNS is configured for optimum delivery. I will be covering a different item in each day of this series.

DNS problems affecting e-mail delivery: mailserver name

Having outgoing e-mail rejected due to domain name system configuration issues is a common problem that Internet e-mail server administrators face. There are eight things you can check to make sure that you’re DNS is configured for optimum delivery. I will be covering a different item in each day of this series.

DNS problems affecting e-mail delivery: sender domain

Having outgoing e-mail rejected due to domain name system configuration issues is a common problem that Internet e-mail server administrators face. There are eight things you can check to make sure that you’re DNS is configured for optimum delivery. I will be covering a different item in each day of this series.

International spammers in U.S. jails

U.S. Attorney General Michael B. Mukasey's new international organized crime initiative has indicted some suspected spammers.

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Filtering by character set: what, why and how

Have you ever gotten e-mail that has a subject line of "??? ????? ???" or is in a language you cannot understand and wondered why someone would send e-mails in gibberish? Well, the e-mail isn't in gibberish, it's just that it's encoded in a format your computer doesn't understand.

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More CAN-SPAM Act Rules

Last Wednesday, the Federal Trade Commission released more proposed rules regarding the implementation of the CAN-SPAM Act of 2003. Only five years after the act was passed, and three years after the last provisions of this act were announced, the FTC is finally getting closer to defining the rules.

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Domain name registrars used by spammers

In an article on Government Computer News, William Jackson reported that 90 percent of the web sites advertised in spam e-mail are at domain names registered at just 20 of the 800 ICANN accredited registrars. A registrar is a first line distributor where you can purchase the use of a domain name.

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