SMTP PORT CONFIGURATION on PORT OTHER THAN 25 IN TPLINK ROUTERS!!!!!!!!!!!!!!!!!!!!!!!

SMTP PORT CONFIGURATION on PORT OTHER THAN 25 IN TPLINK ROUTERS!!!!!!!!!!!!!!!!!!!!!!!

SMTP PORT CONFIGURATION on PORT OTHER THAN 25 IN TPLINK ROUTERS!!!!!!!!!!!!!!!!!!!!!!!
SMTP PORT CONFIGURATION on PORT OTHER THAN 25 IN TPLINK ROUTERS!!!!!!!!!!!!!!!!!!!!!!!
2024-03-26 13:33:19 - last edited 2024-03-26 19:34:45
Model: Archer A6   Archer C2   TL-WR720N  
Hardware Version:
Firmware Version:

Why they aren't allowing user to using other ports for SMTP server!?

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Re:SMTP PORT CONFIGURATION on PORT OTHER THAN 25 IN TPLINK ROUTERS!!!!!!!!!!!!!!!!!!!!!!!
2024-03-26 14:33:30 - last edited 2024-08-02 13:00:51

  @bharatThapa 

 

This problem has been going on for quite some time. It's a matter of FW implementation.

Originally, the Simple Mail Transfer Protocol (SMTP) used port 25.

Despite its pedigree, many ISPs (Internet Service Providers) and email providers have started to block incoming connections on port 25 as a security measure.

Today, SMTP should instead use port 587 — this is the port for encrypted email transmissions using SMTP Secure (SMTPS). Port 465 is also used sometimes for SMTPS. However, this is an outdated implementation and port 587 should be used if possible.

Unfortunatelly, the SMTP port 25 is used in TP-LInk home grade routers to send the system logs to an e-mail address, which nowadays is almost useless.

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Re:SMTP PORT CONFIGURATION on PORT OTHER THAN 25 IN TPLINK ROUTERS!!!!!!!!!!!!!!!!!!!!!!!
2024-08-02 12:27:14

  @terziyski But I can't configure port 587 on consumer grade router archer c6 v3

terziyski wrote

  @bharatThapa 

 

This problem has been going on for quite some time. It's a matter of FW implementation.

Originally, the Simple Mail Transfer Protocol (SMTP) used port 25.

Despite its pedigree, many ISPs (Internet Service Providers) and email providers have started to block incoming connections on port 25 as a security measure.

Today, SMTP should instead use port 587 — this is the port for encrypted email transmissions using SMTP Secure (SMTPS). Port 465 is also used sometimes for SMTPS. However, this is an outdated implementation and port 587 should be used if possible.

 

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