I am a front-end developer so the server stuff goes a bit over my head. Please excuse me if the question is dumb.
I am hosting a wordpress site on our server with contact form 7, but we only have a A-records for www pointing to our site. The email management for said domain is held by a third party.
How is contact form sending the emails to the admins? It is using our hosts SMTP service? I am asking because I am getting the emails on gmail, but the client is not receiving them on his service.
Thank you!
When your server is sending email without you configuring anything, the most likely cause is that it is using the server itself. For that, it does not need to "know" any DNS entries, as it just connects to localhost, which always points to the server itself.
When you receive the mail, and your client is not, this is most likely the result of a spam filter. Have you asked your client to check the spam folder?
The problem of - mainly - shared hosting servers is that they tend to end up on spam lists like that of spamhaus.org etc. which greatly enhances your risk to end up in the spam folder. If you control the server, you could request deblocking or even whitelisting your server, but before you do that, you should be certain that your server is not inadvertedly relaying mail because of a misconfiguation, vulnerability, or outright being hacked. Your applications or the server itself could be configured to use an external smtp server, but that's not something that's easily explained here. Maybe try on serverfault.com?
Related
I am an email server noob. I own a domain 'mydomain.org' and I'd like to forward emails sent to that domain to other email address, perhaps at 'gmail.com' or 'university.edu'. I thought I set this up right, but my email log is giving me errors like this:
connect to mx1.university.edu[171.67.219.71]:25: Connection timed out
and
Dec 22 05:17:24 mail-server postfix/smtp[6370]: connect to alt1.gmail-smtp-in.l.google.com[2607:f8b0:400d:c00::1a]:25: Network is unreachable
I don't know too much about this, but I imagine there must be some kind of authentication that I need to set up, but I'm shy of the laundry list blog posts. Does this look like "authentication stuff"? If so, what do I need to set up next? If not, any idea why the receiving mail servers drop my server?
Yes, network issue. For future folks, Google does not allow outgoing connections for SMTP servers, maybe to prevent spam? Here's info about how to set that up: https://cloud.google.com/compute/docs/sending-mail
My q is whats can stop http post from desktop applications ?
e.g
i have a desktop application before it start it's ask users form some information
like a username ad Email ,,, and then take this information and post it on php webpage and php insert it into MySql Server any way the problem now is lets say like
6 of 16 download(s) are registered and the others not so whats can make http post not run correctly ?
Note :
Software tested on every windows os and runs ok
Software run with all anti viruses programs ok
Software add port throw windows firewall ok
So whats can make http post not run correctly ?
Regards
There are many things that could stop communication between your application, and your database.
If the client has a firewall that requires authorisation for outbound requests.
If the client has to connect via a proxy server, and you application is not proxy aware
If your website fails to process your request (perhaps, if the MySql server is too busy to allow connections, etc.)
So, consider an end user behind a WebSense proxy that additionally allows administrators to filter out unwanted traffic. If your application is not proxy server aware, it will fail to connect; If your application is proxy aware, and whatever WebSense category you fall into is filtered for that client, it will also fail to connect.
I have a website application where the users will perform tasks that will send request to other servers.
I wish those request to be performed through the users own IP and am therefore looking for a way to solve this issue, eg make sure that it is not my servers ip that are visible to the other servers.
One way of solving this would be that the user installed a browser plugin that serves as a proxy server, as the middle hand between the applications request and the other server.
Is this possible to do or will I stumble into hidden security blocks? Where would I begin to check for solutions?
I am using SMTP server built in to the IIS. Over website sends email via this SMTP server and unfortunately we had lost some emails. I looked in to the SMTP log and I could not read that log properly since I could not find any useful tool that can read this log file. It's very hard to understand this log file. If someone give a useful tool that can read IIS SMTP server log, it would be a great help.
I have few other questions too.
The status for the lost email is 250 in the log file, does this mean everything went OK.
Is this SMTP server reliable enough to handle big number of emails at same time?
If not what would be the best solution?
One solution to all of this would be to use a 3rd party mail server provider. Some good ones below:
http://www.aweber.com/
http://mailchimp.com/
http://www.constantcontact.com/index.jsp
They have API you can implement and use in your code to send e-mails through their SMTP.
If you're sending big number of emails at the same time, it is better to use these as your ISP may be blocking your outgoing e-mails since they're in big numbers. They do this to prevent spam and hacking.
Sorry that I couldn't help with the log but consider this information too.
I have a section of code that sends email from SMTP server.
The code is carried out webservice & smtp server value is picked up from web.config, while the code hosted on server1 works (send/receive emails), whereas the same code hosted in server2 doesn't send/receive email.
Can you tell your thoughts?
Thanks
This really belongs on ServerFault.com, and there isn't enough information to give you a definitive answer, but I can give you my thoughts on it (as asked).
Most likely, if the SMTP server is a different server than the one your app is hosted on, then probably there is some configuration that needs to be done on the SMTP server. Usually, the SMTP server needs to grant pass-through permissions on a per-user and/or per-server basis. So, most likely your situation is that the SMTP server has an "Allow pass-through" list that includes the server where your code works, and does not include the server where the email is NOT sent.
At least, this is usually the problem in our network...
If the SMTP server is on the same server as your app, of course, you'd want to check to ensure that SMTP is installed on both servers with the same configuration.
If this fails, look for errors... In your app code, or in the event log.. .If my guesses are wrong, you're going to need more info to go on.
Finally, here is a good resource for a coder, not necessarily for an Admin, but it may have info that will help you. http://systemnetmail.com/
first thing to check is the windows firewall and if there is an antivirus or third party firewall installed on the machine.
also check the event log for some useful information about the details of the error.