Mail Servers

dear people who run mail servers
Can you please configure your mail servers to check the reverse-DNS on incoming mail? For example, if an email comes from soandso@somedomain.com , please, for the love of God, check the MX record for somedomain.com and make sure it ...

Dedicated E-Mail Servers
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E-Mail conundrum
Whilst I can e-mail from servers in the UK, USA and France our clients and suppliers are contacting us saying that they are getting their e-mail returned with an error message that reads: ...

How does a Blackberry device work?
When you buy a BlackBerry handheld you can download for FREE a fully-functional version of BlackBerry Professional Software (BPS) for your existing email server. BlackBerry Professional Software Express (BPS Express) is a FREE download ...

Comment on Kraken Botnet Twice The Size Of Storm by zupakomputer
Home users often do have dynamic IPs, but from the reports this infector seems to be taking over whole networks, so they likely have mail servers in place already (I presume it is using those?) as well as dedicated IP blocks internally, ...

Appears to be dead.
Ghost Mail appears to be dead and I went to quite a few websites. No server appears to have the proggy. I think it worked by using some of the mail servers like geocities to send mail through their mail server so your IP wouldn't appear ...

Using iptables to rate limit SMTP connections.
If you need to limit the number of connections made to your mail server under this type of attack, the following one liner can be added to your iptables config to help limit connections:. iptables -I INPUT -p tcp –dport 25 -i eth0 -m ...

Outgoing sendmail issue
We normally run our servers with sendmail disabled, but we now have a need to route some mail to a mail server within our company for distribution. The mail however is not leaving the server ??? I have verified access to the mail server ...

Downgrade FreeBSD ports
I used to use FreeBSD ports in all related server job. I don’t remember what ports that might behave strangely in my mail server until I remember last portupgrade job. I upgrade dovecot to latest version. I think if I downgrade dovecot ...

Mail from some servers not being received on Exchange Server 2007
A few weeks ago, when we switched from our Exchange 2003 relay servers to our Exchange 2007 Edge Transport servers, we experienced problems receiving email from specific domains. I checked the message tracking logs and I could not find ...