As many have heard over the past year older versions of SSL have been compromised and should no longer be used by servers to negotiate communications. however disabling these deprecated SSL versions can be a bit of a headache. I would strongly suggest anyone with public facing servers test them to be safe. I personally […]
This applies for Exchange 2010 as well as Exchange 2013. I just tested this out on both and they both work. Essentially we had a problem, users were not smart enough to go to https://owa.domain.com or https://mail.domain.com/owa (Mostly the HTTPS:// part). With this, users can go to “owa.domain.com” or “mail.domain.com/owa” and it will automatically forward […]
We just recently begun building an Exchange 2013 DAG to support out email environment. This is part of an internal shift to Lync 2013 and Exchange 2013 for unified communications. We followed Microsoft instructions on building my first 2013 machine, migrated a single test mailbox and started testing. We found no mail flow between […]
I have been pulling my hair out for a couple days trying to figure to get the EFA spam filter tagged messages to automatically go to my exchange outlook users junk mail folders. I finally figured it out and I would like to share it. First what are we trying to accomplish with this. the […]
That’s right, you can pull all of your email users into E.F.A. and authenticate against AD (probably any LDAP server)! I plan on making this a configuration option in a later release of E.F.A. For now, follow these steps. 1) Create a user and password (proxy service account) in AD to allow username lookups 2) […]
EFA Project works great out of the box. However I did run across one issue. By default it only scans messages that are 200k and smaller. This worked great in the past when bandwidth was expensive and spammers were using plain text. however these days they are sending pictures to get by spam filters etc. […]
If you are like me spam and virus filtering for email servers is a very costly and time consuming task. There are many great retail solutions that do a excellent job of filtering. But they are costly and generally licensed on a per mailbox basis. Some would say that most newer mail servers such as […]
Exchange 2013 451 4.7.0 Temporary server error. Please try again later. PRX5 In Exchange 2013 RTM and Exchange 2013 CU1 you may occasionally receive the following errors in your Outlook clients as seen below. <strong>451 4.7.0 Temporary server error. Please try again later. PRX5</strong> And in the connectivity logs you may see NS server […]
I have run into the max message size limit alot lately especially in sbs 2011 installs. most people need the limit increased to at least 20 meg. you can follow this documentation to do so. this can also be done with the gui however the exchange powershell makes these changes much faster. Size limits […]
The issue and solution described here is by design, but not known by every customer so here’s my short write-up on this subject. Recently, I was at a customer reporting issues with several users not being able to synchronize their mobile devices using ActiveSync. The customer was running Exchange 2013 SP1 and used various […]
