Re: SMTP issue with 421 code
Piotr Wycichowski
10-22-24
Thanks. Finally it occurred certificate problem on mail server. Weird is that the older version of SERP (2021-04-18) was able to sent mail using this server, while newer - not. Suddenly one day our SERP wasn't able to send mails. Our IT support man re-installed certificate and mails started to be sent again.

/Piotr W.
Reply
Leave Comment
You can subscribe to notifications for this post by selecting the 'star' icon on the top right corner of the post.
Latest Posts
Re: Re: SendWebRequest
Andis Blicāns, Grasko
Thank You for answer. In this case I used SSLNoCertificateValidation = true; SendWebRequest SSLNoCertificateValidation = false; ...
23:01 24 Mar 2026
Re: qupdating collisions
Gatis Jansons
Hi, Paul. Sounds like you're talking about REST API. And that your are overwriting data with older values if B managed to read record before A finished to update it. Classic conflict resolution ...
14:53 19 Mar 2026