Get APLawrence.com by RSS199 results. Narrow Selection By Tag Mail AND
Cisco PIX interferes with TLS (encrypted) Email
I was confused again. "I think so", I answered. "I'm pretty sure I would have set you up that way originally - maybe something changed?". I asked him to take a look in the SMTP Server section of his Kerio configuration, specifically under the SMTP Delivery tab. I asked him to see if "Use SSL if supported by remote SMTP server" was checked
| Title | Date | Comments | |||
|---|---|---|---|---|---|
| Kerio Connect Archive Script | 2011 11 | ||||
| - This script for the Kerio Connect mailserver (7.3 and up) creates subfolders of INBOX and moves older email into these. Kerio's automatic indexing will fix these up overnight. - | |||||
| Kerio Connect Automatic Index Maintenance | 2011 11 | 2011/11/22 TonyLawrence | |||
| - The latest Kerio Connect Mailserver release includes both on demand and automatic reindexing of users mail folders. I decided to abuse that and see what happens - | |||||
| Kerio Connect Mailserver version 7.3 | 2011 11 | ||||
| - Kerio Connect Mailserver version 7.3 is scheduled for release in early November 2011 and adds important features, including a few that I suggested and lobbied for earlier. - | |||||
| Email addresses still matter (for now) | 2011 09 | ||||
| - Email: it has helped kill the post office, is the primary source of spam, is critical to many businesses and, after malware, is probably the single largest source of user difficulties. Every internet user has at least one email address and many of us have several. Email is ubiquitous and very important. It's also threatened: many people use services like Facebook and Google+ for most of their daily communication. Somewhat ironically, you typically need an email address to sign up for these services, but the deficiencies of email have even caused some to try to eschew it completely and only use alternatives like those. That trend may continue; in a decade or so, "email" may be as antiquated as "gopher" and "uucp" are today. - | |||||
| Common email problems | 2011 08 | 2011/09/02 ed | |||
| - Yesterday I talked about why you shouldn't send Word attachments in email. Today I'll continue with more attachment related issues and also touch on some other common email glitches. - | |||||
| Why you shouldn't send Word attachments | 2011 08 | 2011/08/31 BigDumbDinosaur | |||
| - As I continued my walk, I thought about how email issues are likely the most common mysteries my neighbors have with their computers. Notice that I said "mysteries" and not "problems". That's because most email issues are from misunderstanding and confusion, not necessarily any real problem. A virus infection is a problem. A dead hard drive is also a problem, but email is usually simple confusion or lack of knowledge. - | |||||
| Let's NOT have an email discussion about this! | 2011 08 | ||||
| - This is a less than ideal way to truly have a discussion. If Bill replies to me and I reply to him and then we have to get Stephanie's input and she and Bill l have a little side conversation, things get messy, confused and hard to follow very quickly. There are better ways to handle this. - | |||||
| Mysterious calendar in Kerio Webmail | 2011 07 | ||||
| - Troubleshooting a Kerio calendar: His calendar in Kerio also displays items from M's Google Calendar. This seems straight forward, except neither J or I set this up and both of our users c laim they don't know how it got set up this way. - | |||||
| Using fail2ban with Kerio Connect mailserver | 2011 06 | 2011/07/14 Pat | |||
| - Fail2ban is fussy about dates in log files; Kerio's security log does not meet its standards - | |||||
| Helping my sister-in-law with Gmail | 2011 06 | 2011/06/02 TonyLawrence | |||
| - I'd rather send pictures or a move than take control of their computer. They can refer back to what I sent over and over again. - | |||||
| Sendmail VRFY | 2004 09 | ||||
| - In the process of doing some testing of a mail server, I noticed a piece of spam mail delivered to an address that no one should have known about. This disturbed me greatly, because the only place that address appeared was in the mail alias file on my server. Had my server been compromised? - | |||||
| SpamCheetah as it stands today | 2011 03 | ||||
| - SpamCheetah is a greylisting spam control technique and it is more of a spam blocker rather than a spam filter since it really does not filter anything. - | |||||
 | |||||
| Basic DNS: PTR records and why you care | 2004 07 | 2011/05/02 BigDumbDinosaur | |||
| - A PTR record (sometimes called a "host PTR record") is what lets someone do a "reverse" DNS lookup - that is, they have your IP address and want to know what your host/domain is. - | |||||
| How can I send email attachments from the command line? | 1997-2003 | 2011/02/01 anonymous | |||
| - Sending attachments from the command line with mutt, uuencode and other methods. If it's just arbitrary text or a file you want to send, and don't care about it looking like a real attachment, you can use ordinary "mail" ("mailx" on some Unixes) at the command line. However, that's NOT a mime attachment - it's just your file mixed in to the mail message. However, some mail clients will see it and treat it as a real attachment, so this may be "good enough": - | |||||
| How do I test a smtp mail connection? | 1997-2003 | 2010/09/01 alain | |||
| - How do you manually test an SMTP connection? All you need is "telnet" and these instructions. - | |||||
| How do I test an imap server? | 1997-2003 | ||||
| - How to test imap from command line. The "abc1" etc at the begining of each command is just a tag you make up. Supposedly it should be unique for each line; I've found you can actually use the same tag over and over again. - | |||||
| Why run your own mail server? | 2002 11 | 2010/04/10 darksider | |||
| - Indeed, why would you run your own mail server? Obviously it must cost more, at least for small companies with just a handful of mail accounts.. You have to buy hardware, and probably mail server software itself, and you have to maintain it, and feed it electricity. It seems like a dumb idea, right? Nope. It's actually a very good idea, and here (at last) are some of the reasons why. - | |||||
| Google's Gmail | 2004 06 | ||||
| - Why is this so good? The problem all heavy email users have is organizing and searching our mail. It isn't the instantaneous reading and sending that is our major concern; it's finding records of conversations. In traditional email applications, we do that by dumping messages in folders, and tagging messages with labels or color codes. Gmail has a better way. - | |||||
| Configuring a News Server | 1999 01 | ||||
| - iGuide to install and configure an INN 2.0 news server - | |||||
| Understanding MX records | 2005 12 | 2011/01/16 anonymous | |||
| - Mail Exchange records exoplained - | |||||
| Fixing Large Kerio Mailboxes | 2008 05 | 2011/11/29 TonyLawrence | |||
| - I bet you have customers who never delete anything out of their Inbox, or if they do, they never empty their deleted items folder. If they are using Outlook PST files, they will sooner or later crash. - | |||||
| CleanCode Email | 2003 11 | ||||
| - Using Cleancode email client - | |||||
| Gmail vs. in-house Mail Server | 2007 10 | 2011/07/06 TonyLawrence | |||
| - Well, in fact I can recommend this for some cases. It may not be for everyone - there are some disadvantages - but it can make a lot of sense and the price is reasonable, especially for very small organizations. - | |||||
| Mac OS X Mail Client | 2002 12 | ||||
| - Mac OS X Mail Client - | |||||
| Using the spooler to print to email | 2003 12 | ||||
| - First define a new spooler destination using the dumb interface script and /dev/null for the device. Give your new spooler destination a name - I called mine email displaying a deficit of imagination. Next, change directory to /usr/spool/lp/admins/lp/interfaces and edit email if that's what you called it. I use and like vi for editing but you can use whatever editor you like. Finally, I added a line, changing the FILTER to get the emailing done. - | |||||
| Network Troubleshooting | 2010 03 | 2010/03/16 AndrewSmallshaw | |||
| - As it turned out, the problem was very physical: a light fixture had fallen down and loosened some connections to a long forgotten ethernet switch. - | |||||
| sendmail setup guide | 1997-2004 | ||||
| - To thwart the ever-growing problem of junk and spam email, which in many cases cripples systems and daily, business operations it will be necessary to convert a growing number of systems to newer and more secure methods of mail deliver. Methods to implement include the blocking of mail relaying through systems. Checks of who is sending mail and who is authorized to do so. Creation of blacklisted senders from which mail will always be rejected. Creation of white lists specifying each individual who is allowed mail access while denying all others. Using new techniques of identifying sources of spam email such as real time black hole lists and content filtering such as spamassassin. - | |||||
| Kerio Mailserver vs. Microsoft Exchange | 2009 03 | ||||
| - I sell Kerio because I like the product and the company. I do not like it because I sell it. - | |||||
| Kerio Troubleshooting | 2008 05 | ||||
| - There are only a very few things that will completely prevent Kerio Mailserver from starting. Usually this would come from a confused or mangled configuration file, but there are other conditions that can cause Kerio to refuse to start. - | |||||
| Using Free Google Gmail with your Domain | 2009 01 | 2011/10/13 TonyLawrence | |||
| - shifting your hosted email domain to the hands of Gmail - | |||||
| Kerio Mail Server with Spamassassin | 2006 07 | 2011/02/04 TonyLawrence | |||
| - Cross platform ( Windows, Linux, and Mac OSX) mail server: Before we get into the details, let me say that I was very impressed. This is well done, and they have paid attention to important details. I have a few minor nit-picks here and there, but over all I can highly recommend it. - | |||||
| Lan sniffing with a DualComm port mirroring switch and Windump | 2010 01 | 2010/01/23 TonyLawrence | |||
| - Using Dualcomm Port Mirroring switch and Winump - | |||||
| Kerio Pricing | 2007 12 | ||||
| - - | |||||
| ClamAV on Mac | 2006 06 | ||||
| - Clam AV on Mac OS X with Kerio Mailserver - | |||||
| Kerio Webmail | 2009 03 | ||||
| - webmail with full functioned drag and drop, includes calendaring, scheduling, shared folders - | |||||
| Spamassassin on Mac OS X | 2003 03 | ||||
| - Spamassassin on Mac OS X - | |||||
| Kerio Mail Server Spam Filtering | 2006 07 | 2010/09/24 TonyLawrence | |||
| - Kerio Mail Server has several configuration options to protect against spam email. For maximum protection, you should investigate and set all appropriate items. - | |||||
| Installing Spamassassin | 2005 12 | ||||
| - The word 'Spam' as applied to email means Unsolicited Bulk Email ('UBE') or Unsolicited Commercial Email ('UCE') - | |||||
| mail carriage return newlines -->Re CarriageReturns???? | 1997-2004 | ||||
| - mail carriage return newlines -->Re: CarriageReturns???? - | |||||
| SME Server (E-Smith) Mail Forwarding, Lists, Etc. | 2002 06 | ||||
| - SME Server (E-Smith) Mail Forwarding, Lists, Etc. - | |||||
| Troubleshooting failed email | 2009 08 | ||||
| - You send email to someone at joe-blow@somedomain.com and get something back about "The following addresses had transient non-fatal errors" - | |||||
| Sendmail | 2002 04 | ||||
| - Sendmail can be a little scary. If the 1,000+ page O'Reilly reference doesn't give you pause, the cryptic configuration files probably will. But actually, if you can put up with a little pain to get by the basics, Sendmail really isn't all that difficult. It is complicated, but a few "rules of the road" will allow you to understand it. - | |||||
| Email attachment stripping | 2001 12 | ||||
| - The number of viruses that attack windows systems is incredible. Virus scanning is costly, and can't guarantee 100% safety: if you get a virus before the scanners know about it, they will let it pass unchallenged. - | |||||
| Cloning a directory structure without copying files | 2004 10 | ||||
| - Blog # 1124 Cloning a directory structure without copyingfiles - | |||||
| Kerio Configuration | 2008 05 | ||||
| - Don't miss these features in setting up Kerio Mailserver Kerio offers a 30 day full featured demo you can download. You can install on Windows, Linux or Mac OS X. - | |||||
| Cisco PIX interferes with TLS (encrypted) Email | 2010 10 | 2010/12/09 TonyLawrence | |||
| - A PIX firewall with the Mailguard feature turned on may interfere with encryption of SMTP traffic - | |||||
| Why do I get mail saying my message had too many hops? | 1997-2003 | ||||
| - The problem described here occured because mail did hop from machine to machine (uucp modems) many more times than it is likely to now, and it was not unusual to be confused as to the right path to take. - | |||||
| mailx reply to -->Re Newbie Mail question | 1997-2004 | ||||
| - mailx reply to -->Re: Newbie Mail question - | |||||
| SME Server Local Networks and VPN's | 2003 07 | ||||
| - SME Server Local Networks and VPN's - | |||||
| Sharing Kerio Folders, Calendars and Contacts | 2008 11 | ||||
| - Sharing folders and contacts with Kerio Mailserver. Kerio 'folders' consist of mail folders, calendars, contacts and notes. Every user has their own private folders (but can share any of them with other users) and there are also Public Folders which are automatically available to all users. - | |||||
 | |||||
| Kerio Mail Server Mailing Lists | 2004 10 | ||||
| - Kerio Mail Server Mailing Lists - | |||||
| Fake blacklists? | 2006 07 | ||||
| - Is http://unblock.secureserver.net/ a fake blacklisting service? - | |||||
| PPP and DNS Configuration | 2001 11 | ||||
| - PPP and DNS Configuration - | |||||
| How relevant is a good antispam solution for you? | 2009 08 | ||||
| - Comparing anti-spam methods - | |||||
| Thoth Newsreader for Mac OS X | 2003 06 | ||||
| - Thoth newsreader - | |||||
| Kerio Mailserver Blacklists | 2006 07 | ||||
| - Kerio Mail Server supports looking up in blacklist databases to identify known spammers. You'll find this under the 'Blacklists' tab at Configuration->Content Filter->Spam Filter. Enabling the Internet blacklists will cut down on your spam load considerably. - | |||||
| Why you need a true secondary DNS server | 2006 02 | 2010/01/04 anonymous | |||
| - Some people may wonder why secondary MX records, or DNS servers are necessary, and until you have had an equipment failure, or outage, you might still be wondering. Most shared hosting out there will give you DNS servers (primary and secondary) since your registrar requires this. - | |||||
| Kerio MailServer ActiveSync | 2006 09 | ||||
| - Kerio is adding over the air ActiveSync capability to its 6.3 release (available in beta now at http://www.kerio.com/beta_section.html - | |||||
| Notify Cell Phone of Incoming Mail | 2003 02 | ||||
| - Notify Cell Phone of Incoming Mail - | |||||
More Mail articles
