Ionos - 1and1 (Cannot send email)

Support and Discussion General Discussion
1

Hi hope you are all well with this Covid ans stay safe and healthy.

Anyone can help me regarding the issue that from my server all the emails accounts i have hosted, cannot send email to email accounts/domains hosted at 1and1 or Ionos

Appreciate any help.

I am running cyberpanel 2.0

Thanks a lot

2

Only happens with them, may be my mail server ssl? i ahve various domains and you can only issue one

3

Sorry, I mean everytime i start email cliente gives me warnings about the ssl of the mail server. i.e i have the mail server ssl as mail.maindomain.com, however other domains have their own mail.otherdomain.com (with their own ssl issued)

Also today i encouter that when i try to access the cyberpanel gices me this error:

Internal Error

The server encountered an unexpected condition which prevented it from fulfilling the request.

4

This is the error qwith 1and1

host mx00.1and1.es[212.227.15.41] said:
550-Requested action not taken: mailbox unavailable 550 invalid DNS MX or
A/AAAA resource record (in reply to MAIL FROM command)

I am checking the logs

5

They are fine, made a test with
https://intodns.com/supper.es

and reults are ok

6

not working