Good day to y'all This is not really a question because of a problem I cannot solve, but rather one because of a problem I did solve and am now asking myself why and how. I essentially tried to get the Bluewin mail up and running on my machine but ran into a problem: the Email app just didn't want to connect to the server. I checked time and again that I had entered the [right information](https://www.swisscom.ch/en/residential/help/internet/setting-up-bluewin-e-mail/set-up-bluewin-e-mail/swisscom-server-information.htmlhttps://www.swisscom.ch/en/residential/help/internet/setting-up-bluewin-e-mail/set-up-bluewin-e-mail/swisscom-server-information.html) into the form. As I became desperate I tried every single thing that came to my mind and in the end I got it to work, but not with port 456 on smtpauths.bluewin.ch but port 587 which seems to be the ["default port for SMTP submission on the modern web."](https://kinsta.com/blog/smtp-port/#what-is-port-587-used-for) So is the Swisscom support page simply wrong about which port is open for SMTP (which would be kinda embarassing IMO) or what happened here?

@"early_t"#580552 thanks for contribution port 587 is used for an email address with their own domain... @mydomain.ch port 465 for... @ bluewin.ch or...@bluemail.ch this page can help [Swisscom server information – Help | Swisscom](https://www.swisscom.ch/en/residential/help/internet/setting-up-bluewin-e-mail/set-up-bluewin-e-mail/swisscom-server-information.html) ![Server-Informations www.swisscom.ch.jpeg](https://community.swisscom.ch/skins/images/F0197F95310FCA5568051B8E2BB9E5AF/responsive_peak/images/image_not_found.png)

This is exactly my question. I use a @"Bluewin"#827784.ch mail address and port 587 worked, while 465 did not.

Bluewin mail servers

early_t

Good day to y'all

This is not really a question because of a problem I cannot solve, but rather one because of a problem I did solve and am now asking myself why and how.

I essentially tried to get the Bluewin mail up and running on my machine but ran into a problem: the Email app just didn't want to connect to the server. I checked time and again that I had entered the right information into the form. As I became desperate I tried every single thing that came to my mind and in the end I got it to work, but not with port 456 on smtpauths.bluewin.ch but port 587 which seems to be the "default port for SMTP submission on the modern web."

So is the Swisscom support page simply wrong about which port is open for SMTP (which would be kinda embarassing IMO) or what happened here?

Black Mamba

@early_t

thanks for contribution

port 587 is used for an email address with their own domain... @mydomain.ch

port 465 for... @ bluewin.ch or...@bluemail.ch

this page can help

Swisscom server information – Help | Swisscom

Server-Informations www.swisscom.ch.jpeg

early_t

This is exactly my question. I use a @Bluewin.ch mail address and port 587 worked, while 465 did not.