Issue Unable to connect the mail via iPhone or Thunderbird (or others)

[Masha]

Hello,

I'm currently encountering a problem with the connection of emails via the outside (thunderbird, email on iphone, etc...).

I have a domain name linked on Cloudflare with the same configuration as on Plesk, I have good access to my emails, I can receive and send them from my site with Roundcube, however, I can not connect the emails on an external platform that my site ...
In spite of the flashcode to easily connect your mail via Apple, or the manual configuration, the different techniques ask me to look if there is a problem on my server, because the connection is not made.

I have plesk email security, which I think is not a problem and I added a firewall rule as the picture shows below



I don't know if it's a good thing to have done this but in both cases, with or without, it doesn't work, I've tried to find the answer to my problem but I can't find

Do you have any idea where this might come from?

Thank you in advance for taking the time to answer me, and wishing you a happy holiday season!

Masha

 

[Bitpalast]

It's thinkable that traffic on pots 465 and 993 is blocked by Cloudflare. Have you tried to use the host name of the server instead (not routed through Cloudflare)?

 

[Masha]

It's thinkable that traffic on pots 465 and 993 is blocked by Cloudflare. Have you tried to use the host name of the server instead (not routed through Cloudflare)?

Hello, No I didn't try, as I wish in any case to go through cloudflare, nevertheless in the recording I followed the recordings that plesk makes,

I can eventually try, but in this case I would have another problem, that's why eventually I would have liked to find the problem and the patch via cloudflare, I'm probably missing an entry?



Thank you for your prompt response! and good evening

 

[Masha]

Hello,

Anyone have an idea please?

Friendly,

 

[Masha]

Up ?

 

[pleskify]

Try following:

1. make sure your IP address is not blocked in Fail2Ban because of too many failed attempts
2. make sure you are using the right domain for secured connections. You need to use the system/server host name, which is not necessarily the domain for your mail account
3. make sure you are using the correct ports, username and password in the mail client

Let us know if this helps

 

[Masha]

Try following:

1. make sure your IP address is not blocked in Fail2Ban because of too many failed attempts
2. make sure you are using the right domain for secured connections. You need to use the system/server host name, which is not necessarily the domain for your mail account
3. make sure you are using the correct ports, username and password in the mail client

Let us know if this helps

Hello,

Unfortunately, by respecting these 3 steps, it does not work... it would come from Cloudflare?

Thanks

 

[Kaspar]

Yes, your issue could very well be because of Cloudflare if you have enabled their

proxy. Switch off the proxy if enabled, and try to see if you can connect with an email client (i.e Thunderbird).