Email sending problem

[Flezuxx]

Hi, I can receive emails on my ionos.de dedicated root server, but I can't send them! I use port 26 in the exim (because port 25 is blocked).
However, the transmission tracking shows me the following:

retry time not reached for any host for 'gmail.com'

Can any one Help me? :-(

[GERMAN/DEUTSCH]

Hi, ich kann emails auf meinem ionos.de dedizierten Root Server empfangen, aber keine Senden!
Ich nutze im exim den Port 26 (da der Port 25 gesperrt ist).
Die Sende Verfolgung zeigt mir aber folgendes an:

retry time not reached for any host for 'gmail.com'

Kann mir jemand helfen? :-(

 

[cPRex]

Hey there! The port 26 setting is only for Exim to listen on for incoming emails, and won't affect outgoing emails. If port 25 is blocked on your server, you'll need to have that host remove the block, or configure a smarthost to work around that block:

https://support.cpanel.net/hc/en-us/articles/360053203653-How-To-Send-Email-When-Your-Server-Provider-Blocks-Port-25