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Not receiving incoming emails
- Thread starter DawnP
- Start date
Hi!
My first guess would be that you are using a router/firewall which does not translate port 25 on your (one of yours) public address(es) to port25/internal IP of your Mail server.
My second guess would be that the outside mail servers can not find MX record for your e-mail domain.
Tell us what is your e-mail domain and I will tell you which of my guesses is true (both might be true)
NetoMeter
My first guess would be that you are using a router/firewall which does not translate port 25 on your (one of yours) public address(es) to port25/internal IP of your Mail server.
My second guess would be that the outside mail servers can not find MX record for your e-mail domain.
Tell us what is your e-mail domain and I will tell you which of my guesses is true (both might be true)
NetoMeter
- Thread starter
- #3
There is no MX for that domain!
Marc
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Marc
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- Thread starter
- #5
Since you ask THAT, first a question.
Do you have any prior knowledge about Exchange or e-mail servers in general?
If not, talk to your ISP to get your MX fixed, they will know, and get someone in to handle your side of the story.
Marc
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Do you have any prior knowledge about Exchange or e-mail servers in general?
If not, talk to your ISP to get your MX fixed, they will know, and get someone in to handle your side of the story.
Marc
If 'something' 'somewhere' gives 'some' error, expect random guesses or no replies at all. Please specify details.
Free Tip: The F1 Key does NOT destroy your PC!
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MX is a mail record in DNS that points incoming mail to a specific ip address.
If you setup a web site with an outside host they will tell you to point your DNS and MX records to their DNS servers so that when someone emails you the email knows where to go.
If you setup a web site with an outside host they will tell you to point your DNS and MX records to their DNS servers so that when someone emails you the email knows where to go.
I am in the same boat here. I know just enought to get myself into trouble when it comes to Exchange Server and DNS.
I can send (in and out of my domain), but can only receive inside my domain (not from outside)
I went to DNSreport.com and entered my domain (jtsystems.org).
I believe from the results that it stated it found a mx record. (the IP it showed was my current IP)
My router does not have port 25 blocked. (Isnt port 25 for SMTP, which is for sending?)
Please Advise
Thanks for your time
Joshua
I can send (in and out of my domain), but can only receive inside my domain (not from outside)
I went to DNSreport.com and entered my domain (jtsystems.org).
I believe from the results that it stated it found a mx record. (the IP it showed was my current IP)
My router does not have port 25 blocked. (Isnt port 25 for SMTP, which is for sending?)
Please Advise
Thanks for your time
Joshua
25 is receiving, it has to be open and forwarded to your server.
Your domain has to be in the default recipient policy.
Try telnet to test.
Marc
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Your domain has to be in the default recipient policy.
Try telnet to test.
Marc
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that is not the point here as he is having RECEIVE issues, so the problem is incoming.
Marc
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Marc
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Thanks for you help on this guys!! Much appreciated.
When I telnet to my server using Telnet [servername] 25. I receive "Connection to host lost".
If i try again using port 23 it works just fine.
My router is not blocking 25, so is my ISP???
What next? Anyway of chancing my SMTP service to listen (or send) on a different port?
Anyways of gettnig around it, if it does end up being my ISP is blocking it?
Thanks
When I telnet to my server using Telnet [servername] 25. I receive "Connection to host lost".
If i try again using port 23 it works just fine.
My router is not blocking 25, so is my ISP???
What next? Anyway of chancing my SMTP service to listen (or send) on a different port?
Anyways of gettnig around it, if it does end up being my ISP is blocking it?
Thanks
port 23 lets you send messages from Exchange with Telnet ?
Marc
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Marc
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ask them?
Marc
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Marc
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Yes, YOU can, but that does not solve the ones sending TO you, as every mailserver sends to port 25.
Basically, you're stuck.
Alternative now is to use POP3 to retrieve your mail.
But, is this for business? And what kind of connection do yyou have?
Marc
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Basically, you're stuck.
Alternative now is to use POP3 to retrieve your mail.
But, is this for business? And what kind of connection do yyou have?
Marc
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Im looking into a service that offers, that allows you to change your inbound SMTP port called Mail Reflector. They also offer a service if your outbound SMTP port is blocked called Alternate SMTP.
I will need to change some DNS information to reflect their new service, but in theory it shoudl work like this:
User sends an email to the jtsystems.org domain. It goes through their ISP port 25 to my domain (which is registered at no-ip.com) No IP-COM looks up my current IP Address and which port I have smtp inbound configured on. They then send the mail through my ISP to me. Since its not going to be port 25 going through my ISP, then all should work out.
Im in the process of xferring my information to them.
Thanks everybody for your help.
I will need to change some DNS information to reflect their new service, but in theory it shoudl work like this:
User sends an email to the jtsystems.org domain. It goes through their ISP port 25 to my domain (which is registered at no-ip.com) No IP-COM looks up my current IP Address and which port I have smtp inbound configured on. They then send the mail through my ISP to me. Since its not going to be port 25 going through my ISP, then all should work out.
Im in the process of xferring my information to them.
Thanks everybody for your help.
I know those services, there is also dynsdns which is more stable in uptime then no-ip
In that case you can use port 2225 or whatever you set.
In such cases I usually go above port 2048 as they are not likely to be blocked.
Beware though, if your ISP is really tricky, they could block incomning SMTP traffice too.
Maybe change ISP?
But again, is this for a home connection or a company?
I am asking, as for a company, you really should not take such a limited connection, or ISP.
Marc
If 'something' 'somewhere' gives 'some' error, expect random guesses or no replies at all. Please specify details.
Free Tip: The F1 Key does NOT destroy your PC!
How Do I Get Great Answers To my Tek-Tips Questions? See faq222-2244
In that case you can use port 2225 or whatever you set.
In such cases I usually go above port 2048 as they are not likely to be blocked.
Beware though, if your ISP is really tricky, they could block incomning SMTP traffice too.
Maybe change ISP?
But again, is this for a home connection or a company?
I am asking, as for a company, you really should not take such a limited connection, or ISP.
Marc
If 'something' 'somewhere' gives 'some' error, expect random guesses or no replies at all. Please specify details.
Free Tip: The F1 Key does NOT destroy your PC!
How Do I Get Great Answers To my Tek-Tips Questions? See faq222-2244
Thanks for your reply
Were going to use port 9925.
They are currently blocking Inbound SMTP, thats why I have to use this service. If then end up blocking outbound SMTP no-ip.com offers that service as well (for a fee)
I wish I could change ISP, but since this is for home, and I hate DSL (extra phone charges) , my only option is to stay with comcast cable.
Were going to use port 9925.
They are currently blocking Inbound SMTP, thats why I have to use this service. If then end up blocking outbound SMTP no-ip.com offers that service as well (for a fee)
I wish I could change ISP, but since this is for home, and I hate DSL (extra phone charges) , my only option is to stay with comcast cable.
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