Member Avatar for dreamdezign

Hello i am new here just came here to see if i can recieve any good help from ya gurus..

i installed workgroupmail server www.workgroupmail.com so for the first 3 days it was working fine but after 3 days its not recieving any mail from outside of the network domain like if i send mail to some one inside the network it recieve but its not working when i send mail to my domain mail account from hotmail or others...i have no idea why this is like this...
could you guys please help me whether its dns problem no idea whats the problem
waiting for all of ya help
thanks
bye

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  • Latest Post Latest Post by caperjack

Dani AI

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Brief diagnosis and a tight troubleshooting checklist based on the thread: the fact that internal mail still works but external mail fails after a few days usually means either DNS/MX or network-level delivery is broken (router/NAT, firewall, or ISP). ’s “check the incoming server name” maps directly to verifying MX→A records; ’s question about changed network settings is also on point. Confirm the domain’s MX points to a resolvable host whose A record equals the public IP that other MTAs should contact. (lookup.mxtoolbox.com)

Checklist (run these in order):

  • DNS: from any external machine or an online MX lookup, run:

    nslookup -type=mx yourdomain.com
dig +short MX yourdomain.com

  • From outside your LAN, test SMTP reachability and a simple SMTP conversation:

    telnet mail.yourdomain.com 25
# expect a 220 banner, then:
EHLO yourdomain.com
MAIL FROM:<test@yourdomain.com>
RCPT TO:<existing@yourdomain.com>

    use an external host or an online tester so NAT/firewall is exercised. (learn.microsoft.com)

  • On the mail server, confirm a listener and firewall allowance:

    netstat -an | find ":25"
Test-NetConnection -ComputerName mail.yourdomain.com -Port 25

    If nothing listens on 0.0.0.0:25 (or the server’s public-facing IP), the router will never forward a connection. Check the server’s mail logs/queue for deferred/rejected deliveries. (help.brevo.com)

Network/ISP notes and mitigations: ensure TCP port 25 is forwarded on the edge router to the internal host (NAT). If using a residential ISP or dynamic address, many providers block or limit SMTP (port 25) — in that case either request a static IP/port exception from the ISP or configure an authenticated relay (ISP or third‑party SMTP relay). (noip.com)

Practical troubleshooting order: 1) verify MX/A record and that it resolves to your current public IP; 2) verify external port 25 reachability (telnet/Test‑NetConnection); 3) verify server is bound and accepting connections (netstat/logs); 4) check router NAT/firewall; 5) check with ISP about port 25 or use a relay. If logs show incoming connections reaching the edge but being rejected, focus on bindings/access rules in WorkgroupMail and any local AV/firewall changes (recall ’s installer oddity — unexpected installs or AV updates can change rules). (lookup.mxtoolbox.com)

Recommended Answers

All 5 Replies

Member Avatar for Dani

Sorry, I have no experience with workgroupmail. Have you changed any network settings in that amount of time?

Member Avatar for caperjack

weird i downloaded groupmail trial and got a ms messenger install!!

Member Avatar for Dani

Perhaps that's because it tried to save something such as setup.exe or something like that to your temp internet files directory, and the msn messenger had the same name in the temp folder, and for some reason it didn't overwrite it. Just an idea. LOL

Member Avatar for aeinstein

never hurts to check the basics... is your incoming server name set correctly? email virus protection s/w has a habit of "forgetting" to reset props back up properly after doing a scan via loop-back settings

Member Avatar for caperjack

Perhaps that's because it tried to save something such as setup.exe or something like that to your temp internet files directory, and the msn messenger had the same name in the temp folder, and for some reason it didn't overwrite it. Just an idea. LOL

You are right ,i just downloaded it to my desktop and it wanted to install,also downloaded it to my regular download folder with about 20 other downloads in it and ran it from there and it wanted to install /fix messenger .crazy first time that ever happened .

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