Changes for page Elektronická pošta

Last modified by Denisa Wernerová on 06.09.2024 14:47

From version 7.1
edited by Denisa Wernerová
on 29.08.2017 12:45
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edited by Denisa Wernerová
on 06.09.2024 14:38
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1 -E-mails
1 +E-mail
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1 -* [[How can I read my emails?>>||anchor="preci"]]
2 -* [[Email forwarding?>>||anchor="prepos"]]
3 -* [[Email forwarding to mobile phone?>>||anchor="zasil"]]
4 -* [[Sending emails over SMTP server VŠB-TU outside academic network?>>||anchor="smtp"]]
5 -* [[Outlook Express 6 saying error 0x800c0133.>>||anchor="chyba"]]
6 -* [[How to configure email client?>>||anchor="klient"]]
7 -* [[Attachments, which are filtred by SMTP server?>>||anchor="filtr"]]
8 -* [[How do I know that e-mail is not delivered?>>||anchor="doruc"]]
9 -* [[Renamed the .docx file that was sent from Roundcube>>||anchor="docx"]]
10 -* [[Maximal size of attachemnts?>>||anchor="pril"]]
11 -* [[How many recipients can be in one e-mail?>>||anchor="prij"]]
12 -* [[I have changed the name, but the e-mail address I still have the original>>||anchor="puvod"]]
13 -* [[What is it phishing?>>||anchor="phis"]]
14 -* [[How to set up an automatic reply in absentia?>>||anchor="autom"]]
1 +{{toc depth="3" numbered="true"/}}
15 15  
16 16  ----
17 17  
18 -{{id name="preci"/}}
19 -**How can I read my emails?**
20 -You have two options. You can access your mail inbox by [[WWW interface Roundcube>>url:https://posta.vsb.cz/roundcube/]] or you may use one of email clients. How to configure email client.
21 -For login use your personal number and your [[unified password>>doc:uzivatel.jednotne-heslo]].(SSO/LDAP).
5 += I Can't Log Into My Email =
22 22  
23 -----
7 +First, make sure which mail server your email is hosted on. Students of the EKF and FBI faculties have their mailboxes hosted on the Exchange Online server and log in using their personal number in the format personalnumber@vsb.cz (e.g., abc1234@vsb.cz) and their unified password. Students of other faculties log into the Roundcube webmail application or use an email client via the IMAP protocol, logging in with their personal number (e.g., abc1234) and their unified password.
24 24  
25 -{{id name="prepos"/}}
26 -**Email forwarding?**
27 -You can forward **copy** of email, original will be **always delivered into mailbox **on VŠB-TU. You can set email forwarding over web [[Personal-agenda>>url:http://innet.vsb.cz/en/personal-agenda/my-account/]] → Configure email → Emails → My emails → Email copy. You can use Filters in [[Roundcube>>url:http://posta.vsb.cz/roundcube]] too.
9 +Employees typically use an email client with IMAP configuration, or they can request migration to Exchange Online by submitting a request via the Helpdesk.
28 28  
29 -----
11 += How Do I Set Up Email Forwarding? =
30 30  
31 -{{id name="zasil"/}}
32 -**Email forwarding to mobile phone?**
33 -Yes. You can forward your mails to mobile phone over [[Personal agenda>>url:http://innet.vsb.cz/en/personal-agenda/my-account/]] → Configure email → Emails → My emails → Email phone.
13 +If your mailbox is hosted on Exchange Online, you can set up forwarding using a server-side rule on Exchange, following the guide on Setting Up Email Forwarding and Copies.
14 +If you use Roundcube, meaning your mailbox is hosted on a Linux server using the IMAP protocol, you can set up forwarding either through a filter in Roundcube or by filling in the "Email Copy" field in your personal settings.
34 34  
35 -----
16 += How Do I Set Up an Email Client? =
36 36  
37 -{{id name="smtp"/}}
38 -**Sending emails over SMTP server VŠB-TU outside academic network?**
39 -Yes, if you use service SSMTP / ASMTP:
40 -On the computers, which may be able to send emails outside of academic network must be set:
18 +To configure your email client, you can use one of the guides provided. If your mailbox is hosted on Exchange Online, follow the guide Setting Up the Outlook Client for Receiving Mail from Exchange Online.
19 +If you use Roundcube, meaning your mailbox is hosted on a Linux server with IMAP, configure your email client according to the guide Setting Up the Outlook Client (O365) for Receiving Mail via IMAP/POP3 or other guides available on the Email Client Configuration for Sending and Receiving Emails page.
41 41  
42 -* Server: **smtp.vsb.cz**
43 -* Port: **465**
44 -* Připojení: **SSL**
45 -* Login and password: [[LDAP password>>doc:uzivatel.jednotne-heslo]]
46 -Pro ověřování se používají algoritmy PLAIN nebo LOGIN.
21 += Which Attachments Are Filtered by the Mail Server? =
47 47  
48 -Since the encrypted authenticated connections increasing demands on the server performance, do not set this configuration on all of your computers (including desktops), but only those on which you need to send email from extracurricular networks.
23 +The university's SMTP server filters emails containing executable attachments (even if they are packed in a password-protected archive), such as files with the following extensions:
24 +.msi, .exe, .dll, .js, .jse, .pif, .msp, .inf, .reg, .ws, .ws, .bat, .vbe, .hta, .scr, .vb, .java, .sh, and others.
49 49  
50 -----
26 += Why Was My Email Not Delivered? =
51 51  
52 -{{id name="chyba"/}}
53 -**Outlook Express 6 saying error 0x800c0133.**
54 -Probably there is a problem associated with mailbox size limits for POP3 / IMAP to **2 GB**, which occurs in Outlook Express program ~[[[KB903095>>url:http://support.microsoft.com/kb/903095]]] and Office Outlook 2007 version ~[[[KB830336>>url:http://support.microsoft.com/kb/830336/]]]. An error can be prevented by regular sorting of mail to multiple mailboxes (a problem also applies to the Sent Items folders, even those you need to sort).
28 +The email may have contained prohibited attachments, malicious software, spam, phishing, etc., and the university's SMTP server blocked its delivery. You can recover such emails by logging into the email quarantine web interface at https://postak.vsb.cz.
55 55  
56 -Follow this steps:
30 += What Is the Maximum Attachment Size I Can Send by Email? =
57 57  
58 -1. Do not close Outlook!
59 -1. In the left column, right-click on **Local Folders** → **New folder** enter a name for the new folder, for example Temp.
60 -1. If you still get to inbox move all messages from the Inbox to a new folder Temp.
61 -1. In the Tools → Options → Maintenance tab → Store Folder. So you find out where it is stored on your hard drive file Inbox. Remember this location.
62 -1. Quit Outlook Express, open the folder location and delete the inbox.dbx.
63 -1. Rerun Outlook Express Inbox herself recreated. Now move the messages from the Temp folder back to the Inbox or even better in a few other ingredients to you in your Inbox does not accumulate too many messages. Create new folders described at the beginning of this manual.
32 +The maximum size of an email, including all attachments, is 20 MB. If the attachment or the total size of all attachments exceeds this limit, upload the attachments to a suitable storage service and include a download link in your message.
64 64  
65 -----
34 += How Many Recipients Can Be Included in One Email? =
66 66  
67 -{{id name="klient"/}}
68 -**How to configure email client?**\\
36 +When sending mass emails, always follow the directive Use of Email at VŠB-TUO (TUO_SME_09_002).
37 +If you are sending emails from Roundcube, the maximum number of recipients in one email is 10.
69 69  
70 -POP3:
39 += My Name Has Changed, But My Email Address Is Still the Same =
71 71  
72 -* Incoming server: pop3.vsb.cz
73 -* Port: 995
74 -* Outgoing server: smtp.vsb.cz
75 -* Port: 465
76 -* Connection: SSL
77 -* Login and password: //personal number (abc123), your unified password//
41 +After reporting your new name to the study department (students) or the HR department (employees), a new email alias will automatically be generated. You can then set this new alias as the primary one in your personal settings.
78 78  
79 -IMAP:
43 += What Is Phishing? =
80 80  
81 -* Incoming server: imap.vsb.cz
82 -* Port: 993
83 -* Outgoing server: smtp.vsb.cz
84 -* Port: 465
85 -* Connection: SSL
86 -* Login and password: //personal number (abc123), your unified password//
45 +Phishing is a fraudulent technique used to obtain sensitive information (passwords, credit card numbers, etc.) from victims. It involves sending emails that appear to be official requests from email administrators, banks, etc., asking the recipient to enter their login information on a linked page or to send the information back via email. By entering your login details, you are giving them to attackers who can then misuse these credentials to send SPAM or steal money (in the case of a bank account). More details can be found on the Fraudulent Messages - Phishing page.
87 87  
88 -You can find instructions with images in Czech language [[here>>doc:uzivatel.postovni-klienti]].
47 += How Can I Set an Automatic Email Reply? =
89 89  
49 +If you use Roundcube, meaning your mailbox is hosted on a Linux server with IMAP, you can set an automatic reply following the guide How to Set an Automatic Reply Using a Filter, or by using a rule in your email client.
50 +If your mailbox is hosted on Exchange Online, set an automatic reply in the Outlook web interface via Quick Steps > Mail > Automatic Replies, or in the Outlook desktop client via File > Automatic Replies.
90 90  
91 -----
52 += How Do I Find Out Which Version of Outlook I Am Using? =
92 92  
93 -{{id name="filtr"/}}
94 -**Attachments, which are filtred by SMTP server?**\\
54 +You can find out your current version of Outlook by following the steps in the guide Finding the Current Version of MS Outlook.
95 95  
96 -Attachments, which have following filename extension are filtered by SMTP server and will not be delivered.
56 += Why Don't I Have Access to a Shared Calendar? =
97 97  
98 -**exe,vbs,pif,scr,bat,cmd,com,cpl**
99 -
100 -These filename extensions are filtered also in case they are send in archive file format (//***.zip, *.arj, *.rar**//) even if archive is protected by password.
101 -
102 -----
103 -
104 -{{id name="doruc"/}}
105 -**How do I know that e-mail is not delivered?**
106 -Because the vast majority of emails that contain disallowed attachments is a similar Malware and detrimental software and email sender is fictional, it is not possible for such detention mail informing the sender's e-mail. That's why we choose when about detention on the email is informed only recipient of this email. Therefore, if you had been detained email with a blocked attachment, you will receive a notification with the subject, which might look something like this:
107 -##Zakazana priloha (multipart/mixed | application/x-zip-compressed,.zip,jxpiinstall-rv.zip)##
108 -If you expect an email with such a attachment(in this case jxpiinstall-rv.zip), to arrange with a sender other way to exchange files.
109 -
110 -----
111 -
112 -{{id name="docx"/}}
113 -**Renamed the .docx file that was sent from Roundcube**
114 -This is incompatibility between different e-mail clients. Happens if you send mail with an attachment that the name of the attached file contains accents or file name is longer than 64 characters. In that case it may happen that the attached file renamed at ATIXXXX.dat where XXXX is numbers. If this occurs, rename the file, delete from the name of accents and name it so that the file name is shorter than 64 characters.
115 -
116 -----
117 -
118 -{{id name="pril"/}}
119 -**Maximal size of attachemnts?**\\
120 -
121 -Size of email attachments can be max. **15 MB**. Bigger attachments will be filtered by SMTP server.
122 -
123 -
124 -If the (% style="color: rgb(255, 0, 0);" %)attachment is greater(%%) than or total size of all attachments is larger than the above requirement, save attachments to onedrive Office 365 and send the download link.
125 -
126 -
127 -This procedure can also be used for mass e-mails, which can not have any attachments. In this case, use the "Invite people", but always use the second option, "Get Link". Also, do not use QR codes because mass e-mails are in text format.
128 -
129 -Office 365 is available to every employee of VSB-TU, it is not necessary to request access.
130 -
131 -You can find instructions with images in Czech language:
132 -
133 -* [[If you have Office 365 have never used before, start here.>>doc:uzivatel.email.office365-mail.prihlaseni.WebHome]]
134 -* [[Save file.>>doc:uzivatel.email.office365-mail.office-online.WebHome||anchor="lok-pc"]]
135 -* [[Get a link.>>doc:uzivatel.email.office365-mail.office-online.WebHome||anchor="sdileni"]]
136 -
137 -----
138 -
139 -{{id name="prij"/}}
140 -**How many recipients can be in one e-mail?**
141 -SMTP server VŠB-TU receives e-mails that have a maximum of 70 recipients per e-mail.
142 -If you are sending mail from Roundcube, then the maximum number of recipients per e-mail is 10th
143 -
144 -----
145 -
146 -{{id name="puvod"/}}
147 -**I have changed the name, but the e-mail address I still have the original**
148 -After reporting a name change (the new name) to the Personnel Department will automatically establish this new surname on the system and generate a new email address.
149 -
150 -**1) For standard mail account (POP3 / IMAP):**
151 -Make sure that you have already generated new email address and whether you have it correctly set as a main email to send and receive e-mail:
152 -
153 -* Log on to the [[Personal agenda>>url:http://innet.vsb.cz/cs/osobni-agenda/sprava-uctu/]] → Configure email.
154 -* Switch to → My emails.
155 -* In the table E-mail aliases, go through the Edit button and select your new address as principal.
156 -
157 -Who you can contact:
158 -
159 -* .In case of problems, contact [[the administrator of your department / faculty,>>url:http://innet.vsb.cz/cs/osobni-agenda/pomoc/fakultni-spravci/]] which you can help with change.
160 -* Enter a request to the helpdesk system [[IDESK>>url:http://idesk.vsb.cz]].
161 -
162 -**2) For mail in Microsoft Exchange:**
163 -To change the name contact [[the administrator of the Microsoft Exchange>>doc:uzivatel.email.exchange.zmena-hesla.spravci.WebHome]] or enter a request to the helpdesk system [[IDESK>>url:http://idesk.vsb.cz]].
164 -
165 -----
166 -
167 -{{id name="phis"/}}
168 -**What is it phishing?**
169 - Phishing is a fraudulent technique used on the Internet to obtain sensitive data (passwords, credit card numbers, etc.) From the victims of the attack.
170 -
171 -The principle is sending e-mails that claims to be as official request of the administrators of mail servers, banks, etc., And invite the recipient to enter his access data on linked page, or directly to send data back via e-mail.
172 -
173 -By entering your credentials disclose the attackers, who are then able to abuse this access information to send spam or to steal money from the account (bank account).
174 -
175 -More information:
176 -
177 -* [[For more information on phishing, with examples of these fraudulent messages delivered at the Technical University of Ostrava.>>doc:pc.bezpecnost.phishing.WebHome]]
178 -* For more information then please see eg. [[wikipedia.org>>url:https://en.wikipedia.org/wiki/Phishing]].
179 -
180 -----
181 -
182 -{{id name="autom"/}}
183 -**How to set up an automatic reply in absentia?**
184 -This manual is intended for users who use mail server imap.vsb.cz (pop3.vsb.cz). If you are using an Exchange server, then please contact your Exchange administrator.
185 -Follow the instructions: [[How to setup filter to automatic response - vacation.>>doc:uzivatel.filtry-dovolena]]
58 +Your mailbox is likely hosted on a Linux server using the IMAP protocol. The shared calendar function is available for mailboxes hosted on the Exchange Online (EXO) server. If you wish to migrate your existing mailbox to EXO, submit a request via the Helpdesk.