Clients cannot access pop3 inside the domain

[gau17]

Hi guys,

i created a domain called for example: layers.com
Their pop3/smtp is mail.layers.com. for some reason non of them can access the mail server. I tried to access it from outside their network and it's fine. Can someone please point me to the right direction. do i need to make an entry in the forwarding to let access through?

please help.

Thanks.

 

[58sniper]

Well, can you ping mail.layers.com from inside? Sounds like either a DNS issue, or a port issue @ the firewall.

Pat Richard, MCSE MCSA:Messaging CNA
Microsoft Exchange MVP
Want to know how email works? Read for yourself -

http://www.ietf.org/rfc/rfc2821.txt

 

[gau17]

no I can't.

 

[Davetoo]

If their internal domain name is also layers.com, you'll have to add an A record to your DNS for mail pointing to the internal IP address of the mail server.

I'm Certifiable, not cert-ified.
It just means my answers are from experience, not a book.
The poster formerly known as lander215

 

[gau17]

it's an outside mail service.